Are we talking stuff that's already available/on the horizon, or stuff that we WISH would happen?
Ah hell, I'll take a swing at both.
On my wish list for items already available: Nemo's War, from Victory Point Games. We reviewed it on the podcast a few episodes back and it looks fantastic.
On my wish list for naval gaming stuff that doesn't exist (yet): a set of modern naval warships in 1/3000 scale from Topside Minis. I picked up Rory Crabb's "Naval Command" modern ruleset a few months ago and I'm itching to give it a try, but I don't want to shell out the $$$ for the (admittedly very nice) GHQ modern ships. Topside Minis has said they haven't ruled out doing modern sets in the future, so there is hope!