they've already canned the nsx project
so no replacement there. there was a rummored replacement for the s2000 some time ago but i havnt heard anything since. and with honda goining all green a-la toyota dont look for it to come anytime soon.
but the s2000 was one of the best sportscars period, not the fastest but one of the most balanced and many ways. and definitely for the price not may could compete on a track or the fun to drive factor.