In an interview with Scotland on Sunday, Connery acknowledged that he had already been approached by George Lucas about appearing in the as-yet-untitled film and that he is seriously considering doing so. However, he added, "At the moment, there's nothing decided. I haven't got the script. Everything depends on the script."
However, since Connery and Harrison Ford look about the same age now, its going to be a tough job of the makeup dept to make this work.