For a dumpster fire it sure is alot of fun, I am really enjoying it so far.
It shouldn't affect the others at all, Bethesda Austin was the lead dev on 76, not the original Bethesda Maryland studio. Bethesda Maryland and Bethesda Montreal are working on Starfield and TES 6, which are both confirmed to be singleplayer games. If anything it may have a positive effect, seeing all of the performance issues that the Creation engine is still causing in 76 may finally cause Bethesda to create a new engine for TES 6 if they haven't already.
Didn’t Bethesda just confirm they’re going to use the same engine for Starfield and TES6?