I am not a WWII expert, so I don't know if that tank had a role in the Eastern Front, but I think it would be a great add.
Jagdpanther fought on the EF.
As per a report for March 15, 1945, the total number of Jagdpanthers in the field, serviceable and unserviceable, East and West fronts combined, reached its peak of 199. Of this total, 123 were deployed in the West; 76 in the East.
Pages 42-55, 'Heavy Jagdpanzer - Development, Production, Operations', Walter Spielberger, Hilary Doyle & Thomas Jentz, Schiffer Military History
And this is only for the 15 march 1945.There were more jagdpanthers before and after 15 march on the eastern front.There were also some famous Jagdpanther aces on the eastern front like Hermann Bix.He destroyed 75 soviet tanks with his jagdpanther on the Eastern front in 1945.Hermann Bix was the most succesful jagdpanther commander in ww2.
Jagdpanther will maybe later added together with the soviet SU-100.
And i also hope they add the King tiger(with henschel turret).