Thanks for the welcoming Steve!
Wanted to get back to you about a few things..
As far as the Silent Hunter Series goes though, they've done 2 in the Pacific and 2 in the Atlantic. I wonder what their thought process was after releasing two successful U-Boat iterations of the franchise and then going back to the Pacific. Is the WWII U-boat fan base really larger than the Pacific fan base? It would be interesting to see the sales figures for each one. Since there hasn't been any major titles set in the Cold War, can we really even estimate how big the fan base would be for a Cold War sim? It could potentially be the biggest fan base as there are more people around today that remember the Cold War, it wasn't that long ago.. and even seems like it's coming back!
Ooooh.. an all-encompassing sub sim!

I dig any quality sub sim, regardless of time and location and totally dig that idea, and who better to implement that idea than Ubisoft. If only they could cut and paste the campaigns from Silent Hunter III and IV, add a Cold War campaign (a huge undertaking..), make it MORE dynamic and call it Silent Hunter V.. lol.. if only it were so easy..
Many games see complete overhauls in their underlying engine, some take on completely different settings but carry the same theme. I could see this happening with the Silent Hunter series as well. Besides, the geopolitical tensions that started the Cold War started before the U.S. dropped some really big bombs on Japan, so it would be like they are just picking up where they left off in SH4.. lol..