"George was so clear as to how that works. The canon that he created was the Star Wars saga. Right now, Episode VII falls within that canon. The spin-off movies, or we may come up with some other way to call those films, they exist within that vast universe that he created. There is no attempt being made to carry characters (from the standalone films) in and out of the saga episodes. Consequently, from the creative standpoint, it's a roadmap that George made pretty clear."
What's interesting about this statement is that we already know that Harrison Ford is likely returning as Han Solo in Star Wars: Episode VII, but could this mean that the Untitled Star Wars Han Solo Spin-Off actually focuses on another character, since they don't want the spin-offs and trilogy to cross over? Of course, it's possible that that the spin-off focuses on a younger version of Han Solo, but that has not been confirmed. Or, could this spin-off be centered on a completely different character, such as Yoda?
Earlier today, we reported that Joe Johnston (Captain America: The First Avenger) is a front runner to direct the Untitled Star Wars Boba Fett Spin-Off, although an offer has not been made to the filmmaker yet.