All aboard the never ending hype train.

https://www.instagram.com/p/-xJOP-Jx4t/

You can speculate about future Fallout games here: http://www.gamesas.com/topic/1539832-fallout-5-speculation-ideas-suggestions/

Because unless you hear it directly from Bethesda, consider it nothing more than internet rumours.

EDIT: Or if another developer/publisher confirms something... But otherwise, rumours and ideas can be consolidated in the one thread.