Interesting topic about where this line might lead. The Sherman as shown would be right for the post-landings combat - there is no waterproofing gear. The tanks on the US beaches would have been M4/M4A1 with deep wading equipment (some with dozer blades attached) or M4A1 Duplex Drive. The light tanks and reinforcing tank battalions came later and the armored divisions in later days.
Fortunately for the Allied fans there wasn't a lot of difference in their material between the early battles in Normandy and the drive across France, Market-Garden, and the German border, so a lot of the figures and vehicles can be used for several scenarios.
For the German armor fans, you can hope for the battles around Caen. The US Army had to slog through the hedgerows, but the British/Canadians faced more and better German armor. The Americans saw few, if any, actual Tiger tanks until after Operation Cobra (to the US troops every German tank was a "Tiger" in reports). The US fought infantry and Fallschirmjaeger units and the 17th SS Panzergrenadier Div, but the rest of the SS were fighting against Monty, so most of the "cool" German armor was near Caen.
