"Dangerous Waters" featured realistic playable submarines, ASW aircrafts and ASW vessels. How many players bought that? Obviously not enough for Sonalyst to continue the series.
Storm Eagle studios produced realistic 3d naval warfare games on the 1905 Russo-japanese wars and WW1. How many players bought that? They appear to be struggling and having difficulty meeting their sales target.
Wargames/simulations are a niche market. Naval wargames/simulations are a niche within that niche. Unless players actually
buy these games, they won't get made.
I am still waiting for my dream sim...cruiser-destroyer surface action in the Solomons 1942-43...I'm not holding my breath...