I was thinking it would be pretty cool if SE could maybe think about putting Relic Weapons into the game at some point once the Job system is established to establish some form of long term goal for certain players.
Now I know this will be unpopular but I think they should be extremely difficult to get and take a long time. Yes I know the time sink is unpopular and people will come in stating time does not equal skill but the point of them is that they are rare and not easily attainable. In FFXI I knew I would never get an Apocalypse Scythe for my DRK but every time I saw someone with one or partied with someone who had one I thought it was cool as hell.
The whole point of a Relic Weapon is that they are that Jobs Ultimate Weapon and as such have HUGE requirements to earn one. The requirements have to be huge otherwise everyone would have one and then it would make all other weapons pointless and as much as everybody would probably want one, the reality is that only a small percentage would actually get one.
So with that how could they implement them, have a fair system in place to earn one but still meet the requirements of what a Relic Weapon is supposed to be?
Firstly they should start off with a tough dungeon maybe Nyzul Isle style so you can make little bit of progress towards earning your Base Relic relatively easily. Now this time around the Base Relic would actually be a good and worthy weapon for completing a Dungeon, no 1 DMG and 999 Delay here, however this is not it's final form.
Now we need to come up with some way to upgrade it to it's final form that is going to require a huge amount of effort so much so that it will take a long time to earn and keep the Final Form version rare.
I still think some form of rare/ex currency (like guild marks but not guild marks) should be used here to purchase this upgrade. It would have to be enough though to keep this upgrade rare but they should not limit they source of this currency to a single dungeon. You should have multiple ways to acquire it so you do not have to keep repeating the same thing over and over but needs to still be a challenge. Also it should require drops from tough boss fights. The Relic could have 3-4 stages before it reaches it's final form so it could use a variety of ways to upgrade each stage differently.
This isn't about me wanting a weapon that hardly anyone has as it will most likely be the same situation as FFXI and I just won't have the time or resources to get one but that doesn't mean I wouldn't want them in the game as again I still think it would be cool to see someone with a rare kickass weapon.