Probably a bit late to request stuff... more to show what you're hoping for.
I'd like it follow more in the steps of FONV rather than FO3, with a couple other points:
- harvest resources from the environment (why should I buy from people if I can pick fruit, bottle water, hunt, etc myself?)
- special ammunition, and the crafting thereof, for weapons
- optional hardcoe 'needs'
- rep more important than karma
- weapon mods (esp removable/modular ones)
- women have real models (not manly models, and not the communities 18+ models)
FONV did come post-FO3, and therefore incorporated a lot of features that were previously fan-made (like the idea of weapon mods) - but since it was done by a different publisher entirely I don't know how much it will follow.
I still play FONV. I have to try to enjoy FO3, and only in small doses. I should probably get Tale of Two Wastelands, but (1) my FO3 is via Live, not Steam (which is now defunct) so I might have to repurchase, and (2) I would lose content mods for FO3. It's very hummin' and hawwin' a situation. I can't find out if I need a Steam version of FO3 or not, and even if G4WL was fine, I don't remember my login sooo.... *shrug*