At first, I was in the "only Harrison Ford = Han Solo" camp. Then I remembered that Harrison Ford = Han Solo is dead. The only way for me to get new Han Solo in Star Wars movies is with a new Han Solo. So... it is what it is.
If they cast the right guy, it'll probably all work out fine. I'm going to put some faith into Kathleen Kennedy and the LFL people. They found a batch of awesome people for Episode 7. Hopefully they can do that here too. Yes, I realize that recasting an icon like Han Solo is very different from finding a newbie like Daisy Ridley. I just think they can do it. I like the people involved in this movie - LFL, the directors, etc. I have faith it's going to work out.
I'm sure recasting James Bond the first time freaked out all the folks at JamesBondDefender.com back in the day. They were all like, "Sean Connery = James Bond"! But they recast him and life moved on. I guess at the end of the day, I'm fine with recasting Han Solo because no matter what happens, we'll always have Harrison Ford Han Solo. If you go see the new movie and it sucks, you can go home watch 4/5/6/7 and spend your time on message boards telling everyone why 4/5/6/7 is the "REAL" Han Solo (taking the occasional breaks to chase kids off your front lawn, of course).
Whether we like it or not, it's going to happen. What will be really interesting to see is what happens next.... if the "young Han Solo" movie(s) do well enough... do they take it a step further? Does it eventually evolve into "Young Han Solo" anchoring the cast of an Episode 4 reboot?

I mean, just think about it: Young Han Solo #1 = 2018. YHS#2 = 2021. YHS#3 = 2024. Then... ANH 2.0 = 2027 (50th anniversary?!?)
