I know Battlefront has said they will stick the Tiger into CM:Normandy, probably because the Panzer Lehr Div had 3 Tigers, but what other tanks did the US come up against?
Starting with D-Day, there were two tank battalions in the Cotentin peninsula, the Panzer Ausbildungs-und Ersatz-Abteilung 100 & Panzer Abteilung 206 which had between them a total of 16 R 35's, 36 Hotchkiss's, 11 Somua's, 7 B 2's, 5 FT-17's, and a Panzer III. Plus, the 243, 352, and 709 Infantry Divisions had 37 Marder 38's and 20 StuG III's.
By late June, schewe Panzerjager-Abteilung 654 brough about 25 Jagdpanthers and Fallschirm-Sturmgeschutz-Brigade 12 added StuH 42's to the mix (also StuG's, which other units brought to the American sector as well).
By early July, the 2nd SS Panzer Div and the Panzer Lehr Div brought a collection of Panzer IV's, Panthers, Jagdpanzer IV's, more StuG III's, and possibly the 3 Tigers.
It's possible by late July the 116th Panzer Div's 11 Panzer III's reached US forces.
The units attacking Mortain didn't bring anything new, but it's possible in the ensuing encirclement battle the US forces came up against some of the tanks that had only faced the Commonwealth forces. That includes Tiger battalions, the King Tiger company, more Panzer III's, and the Sturmpanzer IV.
To summarize, the list of different tanks encountered up to Mortain are:
Captured French tanks:
R 35
Hotchkiss
Somua
B 2
FT-17
German AFV's:
Panzer III
Marder 38
StuG III
Jagdpanther
StuH 42
Panzer IV
Panther
Jagdpanzer IV
Tiger
Hopefully we'll see all of them in CM:Normandy!
I used Zetterling's "Normandy 1944" as a source, it's a great book for helping make those Normandy scenarios.