I'd personally would like the Panther more geared to killing premium medium tanks, heavies and non-640 medium tanks. Axis already have a lot of units geared to killing mediums and since Axis don't have anti-heavy TDs, that should be the Panthers role.
It would need adjustment and testing, but it'd focus on having a 200 damage gun vs those types of units along with possible penetration adjustments.
Even if it was accurate, most mediums can be defeated by a variety of other units. You can already dives lightly supported TDs with blitzing PIVs that are around earlier, can mop up infantry and put pressure throughout the map for less cost, pop, and in the case of Ostheer, tech.
"But mirage, it would club the Comet and T34/85!"
That's kind of its point of deploying the Panther. If the enemy is bringing the higher end tanks to the field, this is what is going to be fielded. And it's AI isn't super crazy so there is still ATG support, TDs, snares, etc.
This makes too much sense, so I doubt it will happen.