There's already something like that out already. Two friends of mine and I were in Ul'Dah when we heard an NPC shout that the Empire was coming and that we were all doomed. When we went outside of Ul'Dah and started killing stuff we saw a bunch of Empire soldiers running towards the city similar to the campaign mobs in XI. We found out that it was part of an event where you can sign up and defend the city from the Empire's attack.
And remember, half of the stuff that you're asking for took years to implement on XI. Years. And to ask for similar things, especially considering they might already have expansions in mind might be asking them to alter what they might already have planned. I say might because, well anything is possible at this stage. lol Leves and Behest are really more ideal for casual players and people that generally don't have a lot of time but want to get a decent amount accomplished in that small time frame. They're also good for small three to four person groups to five star to power level classes as I found out when I took a class from 1 to 16 in one day with a couple of friends of mine. I know we're all used to the things that we have now in XI, but we all have to be flexible and patient while SE keeps tweaking this.
For a lot of us, as my Linkshell leader and friend so wisely put it, we wouldn't be here if it wasn't for FFXI. However, a lot of the things that made that game great took a long time to develop. The MPK Patch, the EXP Nerf, etc. Instead of raging about what we don't have we should instead talk and give feedback on how to improve what's already there. It's been nearly a year now, to ask them to trash anything large and replace with something else, that ship has long since sailed. It's all about what can be added to the game, or what can be adjusted, to make it a more enjoyable experience.
Again, if it wasn't for XI a lot of us wouldn't be here playing this game or be so passionate about it. However, and I'm speaking for myself, for all of the things that made XI enjoyable I'd like to see a lot of new and different things make XIV just as of an epic experience as XI was. Remember before level 30 all people had were WAR, THF, RDM, MNK, BLM, WHM. And WARs had to tank WAAAAAAAY back in the day. Any of you remember those times? lol But yeah, I admit getting heated about some of this stuff but I'm going to follow my own advice. Chill out, give feedback, and calm the hell down because in the end it's a game that we're still not paying for yet so there's no real tragedy to us yet since it's not like we're losing money while they try and get it right.