Fallout New Vegas Sequel

With both Bethesda and Obsidian now being owned by Microsoft Fallout: New Vegas actually getting a spiritual sequel is a possibility, however far off or unlikely it may be. If it were to be made what would you want it to be?

Would it be an actual sequel to New Vegas or no? By that I mean would you want it to be in Cali/Nevada, take place suitablyafter, have them actually pick a canon ending and lore?

If you want a game by Obsidian but not exactly a New Vegas continuation, do you have any dreams/ideas? Where would your pick take place? What factions would be there? Would you change anything about how they've presented the protagonist in the past?

I really love Fallout and it would be great to discuss it!