Suggestion by @woven zephyr
Ascension has also felt like a simple solo endgame challenge. Vaults that keep scaling in difficulty getting harder and harder the more you do. Oviously this has worked well for Elixer and Scav but I feel adding Bingo (oviously the best objective) also. The deeper you get the bingo tiles can just scale up accordingly getting harder and harder. It will always then be configurable in the config if people don't want it.
Also the rewards for ascension seem a bit lacking, oviously we can modify ourself in the config but I feel by default some more rewards that are just things you could keep doing should be added such as maybe adding focuses or random gear or loot boxes as long as the ember cost is high enough it would be good to farm for people that want that solo play.