Things confirmed in the last hour or so:

[ShadowBeast005]

@vizionblind

Server Browser
Weapon attachments authentic to the era
Dynamic vehicle damage model, which affects said vehicles for example destroying the wing of a plane
Various Navy vessels

if i can loose a chunk of my planes wing that is going to make me unbelievably happy, i know you could loose part of the hogs wing in bf4 but it dint really effect anything

[NatsuTerran]

BF3 wasn’t that bloated, but BF4 seemed to have way too many sprinkles on top. Things like the SUAV, UCAV, and tons of attachments seemed very extraneous and did not add depth.