All:

Love the New Vegas Engine. Please keep it. The VATS rocks. Much better than Fallout 3.

Here are some new Fallout ideas for after New Vegas:
1. Fallout Dallas/The Wild Wild West - What happened to the AFB at San Antonio? And to Dallas. Highly radiated by the missile, there are lots of mutants, mutated humans, ghouls and some new ideas. Would love mutants that swarm with lil mouth stickers on their hands (Stickies from the Axler Death Lands), mutant large cockroaches (bigger than rad roaches), mutant tarrantulas, mutant snakes, and invading armies from Mexico.
2. Fallout ChiTown - What happened to the city by the lake? And what are all the cannies, gangs, and enemy Chinese shock troops doing there? Half the city is free, the other half was a staging point for the Chinese shock troops. You have to defeat the evil chinese general and rescue the city from his clutches and the evil gangs.
3. Fallout Seatle
4. Fallout Florida - Swampies, muties, giant crocks, and radiated zones. You are based in Gainsville.

http://www.gamesas.com/index.php?/topic/1155916-official-fallout-4-location-suggestions-3/

^^^^^^^^^^^^^^^^^^^^^^ Official location topic for the next game.