I think Sallah would feel very forced in the film, even as a cameo. There are no signs of any locations even near Egypt for the film, so he would essentially be shoved in just because. I voted Henry Sr. because I think it would actually work without feeling forced in, and because I'm still slightly holding out on the fact that Connery said all that retirement stuff to throw everyone off track for his surprise part in the film. I will not go in expecting to see him at all though. I just think that it would be nice, and a little trickery fron Connery would make it more interesting.