What do we want in Fallout 4
how about a proper fallout world....
have it like WoW, epic scale map, maybe use a google map style "you spawn where you live" as if you the player survived a nuclear blast
race selection, - you can play as any of the fallout races, if you go human or ghoul, you spawn at home, (and if youre human and spend too much time radiated you turn into a ghoul) ...supermutants and robots would spawn you at the nearest government building to your house (to say the government had secret projects under the buildings)
make Beastmasters a sub-class available to 'living' races like the humans, ghouls and mutants (ghouls and mutants get a small bonus due to mutations?)
Reavers are a sub-class available to any race (though robots get a bonus due to machines know technology best)
have Alignment on characters to define good or evil, characters with evil rep are classed as 'Raiders'
have gameplay as standard FPS with 2nd and 3rd person views optional, driveable vehicles, food/weapons/tools in the right buildings to be found and used
maybe have buildings destructable, areas hit by weapons capable of damaging the part will break chunks off but can be repaired by any character using a toolkit
like FO2, (and some from the game STALKER) weapons can be upgraded with extra ammo/silencers/scopes etc
share other ideas below....