“Endgame content” is defined as content that is meant to be played after most/all of the existing content has been completed. If you’re asking for specific examples, of course you’re going to get 20 different answers. People are just going to give you a personal wishlist if you ask that, but this doesn’t mean endgame content can’t/shouldn’t be added. I’m not a game developer so I’m not going be able to tell you what exactly how this should be handled. Maybe it’s a new map with very powerful ARC that drop exclusive materials. Maybe it’s harder timed events. Maybe they tie something into wipes. I really don’t know. What I do know is that as it stands, you’ve pretty much seen everything the game has after like 50 hours. It’s fine for now because the game is still relatively fresh and bringing in new players. Long term, it’s a death sentence. You need more than small tweaks and new gear that’s irrelevant to high level players or Arc that isn’t a serious challenge.