I would personally LOVE to see XP come into usage again after the levelcap is hit, albeit in a non-Paragon sort of way…kinda. I’m actually a little bit OK with post-cap progression, but not in an unlimited sense and also not in such a way that it’s so easy you can get through several layers of progression in a matter of hours…like Paragon.
While I do make a lot of alts, I do have one or two characters that I enjoy playing more than the rest, and so after a long day I appreciate coming home and slaying hordes of baddies with them. Due to the illusion of progress (or time, depending on whether you’re a hipster website), it’d be neat if there were a carrot at the end of a rather long stick to work toward over the course of several days therein, even if not remotely necessary to complete.
Personally, I think it’d be neat if Devotion levels reached much much higher, albeit with current stat scaling, but with exponential XP growth requirements rather than their current quadratic growth: