What to wear for a reverse sprint triathlon?

Personally I would just do Tri Shorts.

Assumming a wetsuit isn't being used (that would suck donning if all sweaty), just wear what you'd normally wear in a sprint.  If you wear a top/shirt, ditch it with the bike before the pool.

Being in FL with fairly warm water temps (not wetsuit legal most of the time) and being a swimmer, I'd love to see more reverse events.  It would be interesting to see most who are not swimmers do so AFTER the other legs... who knows, I might have a chance to actually catch some of them

Reverse sprints are so much fun! Especially if it's hot out, it's a great way to end the race.

Wear your regular outfit. The swim portion is usually pretty short so you'll lose more time taking off your top than just swimming with it (unless its baggy). I wear a one-piece, so it's not an option for me.

You wouldn't want to train (pool swim) in your tri shorts but the pool won't hurt them for the short time you will be in there.

This, just rinse them out really well, as soon as possible.

Might also consider rather than wearing a tri top, wear a loose fitting shirt and take it off in T2 before entering the pool.

Also if you're not using one already this would be a good time to get a race belt so you don't wind up swimming with your bib number on.