I have a suggestion -- Across the Rhine, my favorite map, with its beach and the stone bunkers and all.
Trois Ponts and Moscow Outskirts look like they are based off real life too, they'd be interesting to see.
Mmmm! Interesting, Moscow certainly piques my interest,
but I run the problem of the Luftwaffe essentially ceasing most aerial reconnaissance past 1941 and/or most of their material is inaccessible.
... not on the Eastern Front.
I found a great archive of aerial imagery
here! remarkable for it's use both during and post-war in the hands of the allies, but I do not think it has bee digitized or categorized in anyway that would be accessible unless in person
which actually now brings up the issue of researching Eastern Front locales that may have experienced large degrees of change, such as Moscow.

I was able to get away with modern imagery for sleepy La Gleize.
Trois Ponts, could be interesting but I would run the risk of covering the same area twice, or even being accused of western front bias haha. I'm going to give Moscow a little more thought though. See if I can't find some imagery.