What do I think is wrong with FFXI in it's current state?

-Not enough worthwhile small group, 1-3 people, content outside of abyssea, hoping adoulin changes that.

-Leveling in general is broken thanks to the easy AFK levelling in Abyssea. Only relative fix would be to raise the entry level for abyssea (60+) or change it so that players who are inactive over a certain period of time get auto booted, or actually put a hard time restriction, so after 4 hours total you get booted anyway and then have to wait the cooldown before re entry.
-Along these lines, actually have GoV or FoV pages give XP bonuses for running a page with 3 + members in your party.

-VW can be fun but the reward system sucks. Reward people for helping others through the VW tiers, by granting them a special currency that can be used to buy VW rewards. Would help the people think they are making progress toward an item instead of just being lucky.

NNI and legion I can't comment on because I've never done it and haven't had the opportunity to do so.