Well, I think a lot of people would be interested in a "quick battle" feature, where you could, say, specify a range of years (1985-90), forces (NATO/WP), and a region (GIUK Gap), along with other parameters optionally (strike, ASW, convoy, etc.), and have the game toss up a mission with objectives, etc. and canned briefings. Sort of a refined version of quick battles in the Combat Mission system. I think it'd be interesting to offer both a "pick your forces" option and a completely randomized w/in parameters option. Again, this is something some grogs on another forum were talking about, so it's something I think might have appeal.
Doesn't matter to me much because I'm buying this sucker as soon as I can. And yeah, most folks are going to want specific scenarios I think. But I'd be up for a random SSN vs. Battlegroup thing or something like that sometimes I'm guessing.