I don't know, if it would be better to open a new thread, but I felt that my wish, which I have for a long time now, is somehow connected, so here it goes:
I would love to see not only in the upcoming SC WWI, but also in EAW and WAW a couple of scenarios we had in the older versions of the game. By this I mean the other regions/wars as mentioned in this thread, but also smaller or more limited scenarios on an operational scale (Barbarossa as the biggest one, Operation Torch, the invasion of Normandy...) and what if scenarios like in Patton drives east. While the new versions of the game are obviously better than the older ones, there a two reasons, why I return to the old ones from time to time:
First, the variety of scenarios is in itself a huge plus. I even started SC Weapons and Warfare a while ago, just to play the Spanish Civil War scenario.
Seecond, the limited scale of the games and especially of the scenarios. It is sometimes just fun, to play a game for an evening or two and (almost) finishing it.
Actually in my opinion a combination of these advantages with the new engine and mechanics would be great.