Come on guys, do you really believe that Disney will keep Harrison Ford as Indy, jumping, climbing, horse riding, at 71 years old? Di$ney will probably produce more than one new Indy, and will look on future (imagine Indy 7, Harrison Ford aged 80!).
Believe me, I DO love Harrison Ford (well actually I used to love the young Harry), but I want an Indy in a perfect shape, and I don't want any Mutt character to make all the action. So for me, the only way to see Harrison in Indy 5 (maybe he will be 73 when the production starts!), is by him to play an old Indy remembering kicking nazis ass (with another actor as young Indy) in the five begining minutes. Or if it's a reboot, he could make a cameo?
PS : and sorry for my approximative english