Okay, so it is probably a longshot posting this for any number of reasons, but I figured what the heck.
I'm assuming Hasbro has the rights to all of the old Kenner stuff (and this assumption--if incorrect--is possibly the first reason this is a longshot), so I bring this up here. Every toy I ever played with in the eighties has come back in some form or another, but there is one slightly obscure toy line that hasn't seen the light of day in more than sixteen years: Mega Force, the (mostly) die-cast military vehicles displayed at this site: http://users3.ev1.net/~nate555/megaforce/
A lot of hard work went into designing these and I think people could appreciate them again. All you really have to change is the date on the packaging.
I'd love to see these toys rereleased. It would be great if some new vehicles could be released (especially naval vessels), but I would be quite pleased to see just the old stuff come out.