Makes sense - and might be what Vin was referring to when he talked about a merger of brands. The standard MCU six movie deal for Aaron Taylor Johnson and Elizabeth Olsen might include three Avengers and three Inhuman films. Vin Diesel as Black Bolt, two leads from the Avengers sequel and an enormous teleporting dog - sounds like a hit to me.
Any speculation as to the date when the twins new origin becomes canon in the pages of Marvel comics, and the heads of X-Men fans simultaneously explode? I'm guessing it will be addressed during one of the upcoming miniseries and before the release of DOFP.