I'm curious as to whether there is a hard list of names of Marvel characters that Fox owns the rights to.

If there were, and if Alpha Flight members were on it, then I'd say, definitely no, only Fox would be allowed to use them.

Of course, if there were such a list, the chances that it would be so inclusive to have included Alpha Flight characters on it (other than maybe Northstar)? - Slim chance.

And the fact that Fox used an old couple named Hudson in their films (and we never learned their first names, did we?), that allows a lot of wiggle room, I'd say.

Still, I'm doubtful that we will ever see a Flight film from Marvel.