I CAN HAS MOAR WINTER WAR? KTHXBAI
Moar Late Western Front; breakout from Normandy, Market/Garden, Bulge, crossing of the Rhine, drive to Elbe etc.
Finnwars (Winter, Continuation, Lapland)
Eastern Front (1st and 2nd Kharkov, Siege of Leningrad, Stalingrad (could be several scens), Prokhorovka, Berlin, etc.)
The Forgotten Hope, aka Fall Weiß/Fall Gelb/Weserübung/etc. (lots of potential for interesting scenarios and less known equipment)
Pacific Front (even without moving ships, could offer some intense infantry firefights in the jungle, though I have yet to see the player who would like to drive a Japanese paper-mache tank)
Italian Front (not THAT much different from Late Western Front -- except for maybe moar of my beloved P-38 Lightning, which could be inserted in Western Front, and P-39 Airacobra, which will surely be in the Eastern Front)
...in order of preference