Aw, come on sky!
The prequels aren't something to worry about! They will be forgotten, and the OT will always be remembered, SE or not.
One perfect example is King Kong. Yeah, we might remember the 2005 film, but that's probably just because it's so recent. No one really remembers or pays any attention to Son of Kong, King Kong vs Godzilla, King Kong Escapes, the 1976 remake, or the sequel to the 1976 remake. Some people don't even know those exist!
There are many other examples, more than you could probably count.
My point is: The prequels will eventually fade into obscurity, along with maybe ROTJ, but SW and ESB will always be there.
I also think that one day the original cut of the films will be restored, just like what happened to Metropolis.
Just something to consider.
/off-topic