For studios like Obsidian and inXile, being part of Xbox Games is the best thing that could happen to them and to us *roleplaying* game fans.
I hope you are right, but we haven't seen much from either of the studios, and nothing RPG related since the acquisition. Obsidian choose to pursue different genres (survival & narrative adventure) and their bigger projects (Avowed, Outer Worlds2) are still unknowns. InXile has Clockwork rRevolution, but I also am not sure what it is - looks more Bioshocky to me, than RPG-y.
If I had to choose studio that I think will carry the torch of quality RPG games, I wouldn't name neither Obsidian nor Inxile. Obsidian haven't delivered anything truly amazing since FNV (except Pentiment, but this is something different) and Inxile disappointed me with both Wasteland 2 and 3. Their humour just don't click with me. I don't have big expectations towards Avowed, if anything I'm more curious of Clockwork Rwvolution (if it will be closer to Arcanum rather than BioShock).