Personally, I am hoping Thief becomes much closer to DnD RAW because it would show that a lot of issues like disengage have been fixed.
So while you have a cool concept, it would be dashed if my hopes come to fruition.
Personally I hope they leave
Fast Hands the way it is. Though not for the cheese build I came up with. I'm all for fixing
Cunning Action in BG3. But the 5e
Thief subclass is pretty weak compared to other Rogue archetypes. It's features should of been standard for Rogues.