They already made it clear what they want from this update:
Ultrawide screen support
A few fixes with crashes, VATS and NPC movement
Revamped mod menu
More efficiency with bethesda.net
A place for mods to be sold i guess? they werent quite clear
Potential for more console space
Everyone also isnt happy about this and are brewing up an absolute storm about Bethesda. People are just copy and pasting simple tutorials on the steam posts on how to stop the game from updating entirely.
^ They're doing the same thing they did with Skyrim and Starfield: A "Creations" menu with both official Creation Club content and community mods, both free and paid.