It looks like you're new here. If you want to get involved, click one of these buttons!
I think they will, at this point the only thing I would have them do is focus on getting more content in the game, which is upcoming from what I understand. I also agree with others that mentioned area revamps, they are still for the most part pretty bland.
Assuming even after fixing everything though, the problem will be getting players to come back. There are several new games on the way next year offering arguably new features to the MMO genre people are excited about, I can't really see what FFXIV would be able to draw players back with very effectively at that point. Hopefully the game will just be able to retain a commited playerbase to it, much like XI or EQ1.
Then again, i'm not all disappointed in the games current population. I'm not sure if the server lists is being entirely honest about how populated each is, but in-game there seems to be plenty of people still around, granted they've all migrated to Ul'dah it seems.