Sorry, the above strayed a bit. It was the "4,5,6" in the first post that set me off. If they had have done something like I mentioned, that is 3 or so blockbusters per decade, I don't think it would have been a problem keeping Harrison as IJ the whole time. Replacing HF would not have been a consideration, if he was keen of course to stay the course. Many, many ifs. But when HF hangs up the hat, I don't mind the idea of a younger actor taking on the role and returning to earlier timelines.