Actually, why not have Daniel Radcliffe? He can do it the same way he did Weird Al.
With the lone exception of Craig's "Casino Royale," Bond films have been satirizing themselves ever since Pierce Brosnan took the role, so why not just grab Radcliffe and go full satire? I mean, they just killed Bond in the last film, so why are talking about who will play a man that's dead? How can it be anything but satire at this point?