Apparently BGS gave the Skyblivion team free copies of the remaster and have no intentions on shutting them down, so I doubt it. TTW has gotten direct advising from Bethesda before on making sure they stay above board iirc.
The difference is that Fallout is the stepchild IP that everyone at Bethesda hates. They will not respect it. They HAVE NOT respected it. I'm pretty sure the only reason Next-Gen for 4 didn't retcon 60 different things that contradicted the show is because it was shat out in a month to try and capitalize on the show's popularity with the writhing masses.
Y'know, like they haven't learned the lesson everybody already did in the late 2000s/early 2010s- mass appeal is one-and-done and will not follow to other products nor linger.
I think it'd be hilarious to end up seeing a reverse TTW, where instead of porting Fo3 into NV's engine, they port NV into the remastered Fo3 engine.
I also find this unlikely, purely because nobody will want to move from the relatively matured NV modding scene and the Fallout modding scenes in general are gripped by inertia (for better, honestly).
It MIGHT happen if
A- said TTW-redux comes with an autoporter script/plugin. This is unlikely, because porting shit out of Gamebryo can and will drive people to suicide and/or madness, especially the final hacked-together versions for the pre-Creation Engine Fallouts.
B- They use CE instead of UE5 like Oblivion. Still in Gamebryo hell, but there's already someone working on a script to bulk-port things forward to Fo4 from pre-CE Fallouts- currently weapons and armor are fucked, and NPCs/Creatures/Scripts are excluded, but
he's getting there.
They seem to be pretty fair wrt them.
You are aware of where 'paid mods' came from and how long it took for them to actually be fair to said modders, right? Not to mention the numerous re-releases and seemingly spitefully-formed updates to any title after the rebrand of the engine.