Based on the solicitation for Avengers #4, there is a slight possibility that the Flight may appear in the issue (The timestream is broken...), though I'm thinking it is just an exclusive cover for a Canadian comic show.

"The blockbuster Marvel comic of the year continues!! The timestream is broken and with that the Marvel Universe has fallen into utter chaos. Can the Avengers defeat Kang and even if they do, is it too late? Guest-starring EVERYONE!! Plus! Another startling chapter in the untold oral history of the Avengers by Brian Michael Bendis...! "

On another note, if it is going to be a series, someone has got to get Phil some proper reference materials when it comes to drawing Vindicator/Guardian (Mac). That attempt at a Maple Leaf is just poor / lazy.