Ace is alive, in the custody of the WG, and they'll probably be deciding what to do with him…..i.e execute him etc...
whatever happens next, it will involve WB for certain and perhaps Shanks will get dragged into this....because of the him telling WB to call Ace back etc...
or Ace is dead and the WG etc are awaiting WB's response.....
Personally..i hope he is alive... He's too awesome a character to die...but if he is dead...he went out in style