In my opinion, they won't make a Prelude for quite some time (if then even decide to bring it back eventually) because the Honda company has a few sport coupes now as is.
They have the more expensive S2000, but the more reasonably priced RSX type S and the Accord Coupe (v6), so the niche for the Prelude is not far from being filled (although neither of these cars IS a Prelude)
I am just thinking that they will probably have to get rid of one of these cars in order to bring back the Prelude. Other wise they would just be competing with themselves
Just my 2 cents worth,
Clockwork