Re: New Casting and Story Rumors re: EPISODE VII
It's different, though, if you get to see that character grow, mature, and age over much (some) of that timeframe. To me, the most noteworthy (perhaps even jarring) aspect of having Luke, Han & Leia back is not that I first saw them back in the late 70s, but that I haven't seen them (production wise) since the early 80s.
Or to put another way, consider the people I met when I first started high school. It'd be more ... noteworthy if I was suddenly reintroduced to the old acquaintances I haven't seen since graduation as opposed to the few I've kept tabs on in the years since.