Voidwalker, which I haven't got into but which drops some pretty badass gear, Trial of the Magians, and of course Abyssea NM hunts; If you kill 9 zone bosses and 6 caturae, you get a shot at Shinryu, who drops an atma with auto-freaking-reraise. There are also a hell of a lot of new merits, including merit-only weapon skills that kick a mountain of ass the size of the Death Star in Abyssea, and a slightly smaller mountain of ass outside, depending on the WS (Tachi: Shoha is one of the ones that works both ways).

It's also fun, once you get some good atmas like Minikin Monstrosity, Voracious Violet, and Mounted Champion, to pop into Abyssea and solo stuff that used to take an alliance to wipe out.

Beastmasters can now easily solo dynamis for upgrades.

Fair warning: The 95 limit break does require a party. However if you get a summoner with Alexander and a bunch of monks, you can zerg it pretty easily, and my LS has a metric smurfton of monks. Only two summoners, but a lot of monks. You need to be at least level 96 to get the new weapon skills.