Just had a brief look at Danube 85 again. That map still was slightly bigger, I just realised. 65,000 hexes, compared to WitE's 25,000. Probably the reason why I played the big, major, full scenario just once.

3-hours-turns, you know. And that on 65,000 hexes from Scandinavia to the Balkan.

One must be crazy to play the full major big bang thing.
BTW, I lost. Total administrative overload.