I was just visiting the red rodgers forums. I thought there would be no RA mod beyond 1.40, I am proven wrong. They are hard working toward version 1.41! It will add playable skipjack class sub and 093 shang class sub. Plus a huge load of improvements. Most interesting is that torpedo launch detection will depend on the torpedo speed and propulsion.
For the full list of changes and some screenshots checkout the red roger forum thread:
http://www.redrodgers.com/forums/sho...=4912&page=112
It always impress me how dedicated the RA Mod team is, considering that DW is not easy to mod, and DW also start to show its age...