Why are you guys not open to the idea? I think more units is good. Means more doctrines, and more options. Think about this: Soviets already have a medium tank (T34/76) and a doctrine to upgrade them (T34/85), and then IS2, ISU152, KV2 (heavies), KV1/KV8 ("heavies" but not as good) and lend lease Shermans... No one ever complains about all this variety.
Ostheer variety in comparison seems so meh: Tiger, Elefant, Puma, Stug E, Tiger Ace...
But on the other hand you have only 2 docs with IS2, 2 dosc with ISU and 1 with KV2 while OST has 2 with Ele, ale
5 with Tiger (Ace included) +
5 with Command PzIV.
If OST had only 2 for Tiger and 2-3 for Command PzIV it would look bad but with some many options it's not.
New stuff is always welcome but in the first place I would see Tiger's armor buff to 330-340, even with vet 2 if not from the start.