They should just release a new game with the graphical fidelity of Fallout 4, but with better performance and animations. They could probably cut their dev budget in half if they made a game with Skyrim's scope and FO4's graphics.
No one plays Bethesda games for their graphical fidelity so they really need to stop wasting time there.
Frankly, they could rebuild skyrim with the fallout 4 mechanics for base building, shared item storage for crafting, weapon modding, and for shits and giggles throw in steam centurions being unobtainable dwemer power armor frames.
Fuck, sell me basic ass skyrim but integrate the top 30 mods on nexus into the base game. It's honestly not hard to do better then they're doing.