Here's to hoping that update 1.4 will be called The Armada. I think an update with 6 or more ships and nothing else (except tweaks and fixes) would be really exciting.
I wouldn't be surprised if the 1.4 ships will be two traders, at the very least one trading vessel-- maybe the Panther?
I just hope they won't just stop at 25/30. Indeed, I expect them to slow down, but it'd be nice to see the occasional ship added in every few patches.