Drop some mules. No real reason to have them any more unless you have a ton of jobs already leveled that you hoard every possible level of gear for. Plus all the gear you sell should give you a nice little start over nest egg.
edit: Would be nice to get this stickied, coming back threads happen quite often.
As far as 2011 XI is concerned, leveling is quite easy and now becoming even easier according to the latest news from SE.
The real stretch now is from 1-30 just to get access to "'key whore" in abyssea. From there the xp flows like mana from heaven, the skillups become very lacking though and you will need to spend time getting them capped so you are not a useless level 90.
Gil has become a lesser issue as well, with really good gear being available in the level 90 range and with determination much more reasonable to acquire compared to older gear. The main gil needs will come from needing to stay stocked up on consumables like tools, food, ammo and misc. other items.
Endgame old and new still have gems that make them worth doing, usukane feet for instance are very nice, relic/mythic weapons (although the time spent acquiring might not be worth it to some people) are still very good weapons for the most part. There are niche uses for plenty of other items as well that can still be utilized at level 90.
SE has clearly gone towards a more low man friendly environment. This could be attributed to a presumed loss in game population, or just to get people to come back and enjoy the game as it enters it's "golden years."
As far as coming back, if you enjoyed the game before you may really want to return. I do not think they are going to shutdown the servers for a long time to come, so it will be here for a while yet still. I enjoy it, I enjoy the ability to set goals and get them accomplished on a reasonable time table, and not having to spend 5-6 hours each day to get things done.
Some people are very upset as to the new direction that XI has taken, feeling jilted that the time investment they made has become overshadowed by the new stuff. If you liked the more hardcore challenge that the game used to present then it is possible you will not like the game when/if you come back. Chances are pretty good though you quit in the first place for that very reason.
My take anyhow.
Please sticky this thread so people who want to answer these queries do not have to continue to repeat themselves.
This post has been edited by draugo: 28 January 2011 - 01:28 PM