What about Chroma rework? He's literally as badly designed as pre-rework Limbo (who had three redundant abilities) for the reasons below:
1 - Two buffs that should be one ability in his 2 and 3.
2 - A useless 1.
3 - A useless 4.
4 - A niche only in a very specific game mode where he can be replaced to the same effects with little to no loss of time (aka use a Rhino).
So he suffers from lack of role, a niche where he can be replaced, two redundant abilities, two bad ones. In a time where we get mostly tweaks and no outright remakes/reworks or ability replacements (even though Nyx is getting one after eons) I don't think only messing with his numbers will make him a good frame.
Second question would be about Vauban. I understand the devs have an awful lot of stuff on their plates right now, but him, Chroma and Volt are in dire need of reworks but I kinda gave up asking about Volt lol.