I was so incredibly disappointed with Indy IV, there's not a snowball's chance in purgatory that I'll spend a red cent on it for quite a long while. I'm sure I'll buy it years from now just to complete my collection (as I did with Ep. I-II at about five bucks each), but at the very least it'll be a few years before I can even stomach the notion of sitting down to watch that abortion of a movie again.
All that to say - as far as I'm concerned, Lucas has already taken Indy to a whole new place with aliens & flying saucers, and it ain't pretty. I kinda hope Indy V never sees the light of day; I don't want to see IJ derailed and desecrated on the same level that SW was in 1999-present.