Well all be sporting Methuselah-length beards and have popped all the achievements inStarfields umpteenth DLC by then.
Work began on Starfield towards the end of 2015 afterFallout 4shipped.
Fallout 5 in 2040, maybe?

Former Bethesda staff whocrunched on Fallout 76might rankle at that first part, Todd.
The last single-player Fallout wasnt exactly a genre-defining masterpiece, but I enjoyed it a lot.
So did Alec (RPS in Peace) when he gave it an RPS Recommended in hisFallout 4 review.

Bethesdas next game is Starfield, which is out at some point during 2023.
It contains1000 planets, which should keep you going whileFallouts 5 through 75are in development.