Grant:
TB993tt:

It has the same peak torque as the 991.2 turbo, 750NM decreasing to 705NM @7000rpm it shouldn't pose any problem at all to the PDK.

I'm pretty sure the only reason the GT2 RS has same peak torque as Turbo S is exactly for this reason - not to exceed the PDK's torque rating (rather than spend some money to upgrade the PDK).  If not electrically limited, the 2RS should have significantly more torque than Turbo S (same motor with more boost).

That is a very good point...