You clearly didn't read the whole post.
All they need to do is give the Dragoon a skill similar to Shield Oath that boosts enmity generation and give them access to cross-class skills like Flash. It's really not that complicated.
I basically agree with this. Most people will choose the life of a DPS for simplicity sakes, not because there is not enough options. If they gave Arcanists or Lancer another tanking job, I would still play as the DPS versions because tanking simply terrifies me. There would be some who love these new jobs, for sure, but I fear not on the level the OP seems to think.
Or how about, no. (to OP)
The expansion (3.0) has already been planned and prepared. If anything you would be better off making suggestions for the second expansion. Because they won't be taking anything you could think about and post on these forums about a new Job and suddenly add that in for an already planned and created expansion. The core of 3.0 is likely already completely finished, and if they are doing anything else with it it would be fine tuning and small details/adjustments as well as bug testing.
I'm not sure why you'd make this statement.
Sure, they have a plan for new content. That doesn't mean they cannot decide to alter that plan to incorporate additional content.
There is already evidence showing they have made changes based on player desires; Godbert was added to the latest Hildibrand storyline quest based on unanticipated fan popularity for the character. And those were some pretty sweet cutscenes they made.
There's a bit more involved in creating something like that than there is for taking an already existing character and finding a way to place him in a story that he's already a part of.
Edit: My bad, not a new job but a new role for Drg. Eh, again, that's a lot of work to redesign an already existing class and rebalance a new set of skills in order to turn it into basically a completely new job. And they would have to make tank gear available to it and only it, with it not being available for Lancer or Dragoon. None of Lancer's traits are complimentary for a tank style job coming from it. Lancer skills mostly, wouldn't work well with a tanking class and pretty much only have their uses for a dps role.
They would have to completely rework Lancer in order to make something like this work.
I'm almost positive that because they would have to rework all current classes to fit secondary roles (if those roles were different than the original Job the class became, and if they weren't what would be the point?) is the main reason they are likely not going this route with the expansion. (Dark Knight has no class, and in my opinion they will likely continue to go this route with new jobs in the future).
Arcanist was pre-planned to be a dual path class from the start, so it was easy to lay the groundwork to make both branching jobs benefit from Arcanist traits despite their different roles and Job skills.
I honestly don't expect to see another class branch into two jobs again, unless it's a brand new class that is designed to do just that from the beginning, like Arcanist.
"An hour long queue"? The hell are you talking about? My queues are friggin instant as DRG.
It is that complicated. The current way classes and jobs interact prevent this. To give lancer - not dragoon - a tank stance would serve pointless as they aren't a tank at that class level and couldn't function as that. They could indeed have gladiator as a sub class but they wouldn't be able to have them as primary enmity generation tools since 'dragoon tanks', although not actual dragoons, would not have a way to replenish mana like riot blade. Warriors also have access to flash but it's not their primary AoE enmity generation tool, just an additional one.
I know this is hard but you need to use this thing called 'imagination'.
They can give the Job class a Riot-blade like ability.
Hell, they don't even need to do that. There is a like a thousand other ways they could do it.
Many MMOs these days have hybrid classes capable of doing various roles, depending on how they are specced. If freakin Arcanists can be both a healer or a DPS, there's no reason to insist Lancers could not be capable of tanking if a Job was created for them to be able to do so.
1. Imagination is used in the creation of something new. However, with the way the Lancer class works it does not adapt to being useful for any Job skills in which you could (and would have to) give in order to make a tank spring from Lancer.
2. Giving a Job 1 new skill, or even 5 new skills isn't going to help it become a tank when it's base class has no tanking traits or skills at all.
3. You're right. They don't even need to do that, because it wouldn't work. There might be a thousand other ways they could do it (no there isn't) but they all involve re-working the base class in order to create such a thing. They won't do this. It would greatly alter Dragoon in the process in a variety of unexpected ways that would doubtlessly cause balancing issues in which they are trying to avoid.
4. MMOs that have hybrid classes have them designed that way from the ground up (and when they don't they run into all sorts of balancing issues). Way back in 1.x they had thought of the idea of each class having multiple jobs. There's just one problem. When they designed the class/job combinations that existed in 1.x to be represented in 2.0 they gave them fixed roles from the start, starting with the base class. Arcanist was created as an addition to 2.0 and was a completely new class and built from the groundwork to be split into two Jobs. As much as you want to believe, the facts speak for themselves. Current classes do not work in a way that would support a new role Job branching from them because they are classes that specialize in skills and traits that fill one particular role.
Arcanist's class traits and skills can apply to both Summoner and Scholar because it was designed that way, and yet even then there is the issues of skill point allotment that (while minimal) benefits 1 of the Jobs more than the other or makes neither quite as good as they could be (if you split stat points). Other classes do not have this issue when their stat allotment is spent on their best stat.
I fully agree with your idea. Though technically, the Holy Dragoon would actually fall moreso under the Job named Templar, found here: http://finalfantasy.wikia.com/wiki/Templar_%28Job%29
A few tweaks here and there and it could end up being a very impressive Tank with some unique features! Not to mention that it would fit quite perfectly with the Heavensward themes!