Lots of stuff, to do past 50. PPL say there isn't a lot, but compared to other games this is a lot. A lot of the content people don't really play or only do unsynced, but that's SE fault for cutting down the relevance.

They should just do, all old post 50 dungeons give a token. X tokens and u can change them in for various stuff and a large pool of various items.
Then u can get w/e and keep people running old stuff. But w/e

Still lots to do. You tried ESO yet, the end game is pvp. Lame.