Rule The Waves v1.34 Beta 1 torrent

Rule The Waves is a naval Balance overhaul that makes navies significantly more important by increasing their ability to project power and making Trade more focused on trade ships than province trade power.

Instead of the only way to dominate trade being to blob and just take over most of the provinces in a trade node, now you will dominate trade by trading with your Navy and blockading your enemies completely.
This alone completely changes the way you think about using navies and trade wars will become a very real part of the game, the naval ideas are significantly more useful too because navies themselves are more important so having a strong navy also is more important.