me so far what they've been doing with F:3 and NV ...but defo commonwealth based....u fight for the world, and for the commonwealth to open there doors and help the dying world!!! storyline would have to led off F:NV at the end and to your next journey...

oh and before anybody says anything devs are prob now thinkin of there next project so its nice to start putting ideas out there !!!

There's a thread for things like this I believe but I'll contribute anyways.

I want them to use that id Tech 5 engine they got.

http://www.gamesas.com/index.php?/topic/1094022-fallout-4-speculations-suggestions/