Platform designer needs ModelSim PE mixed language license?

​I think you mean to say "in this case(VHDL), you may NOT use a simulator which supports only a single language." I strongly recommend that Intel add this information to their documentation as it significantly impacts a user's decision when choosing between purchasing ModelSim PE or ModelSim Intel Edition.

For our part this will significantly affect plans to migrate designs from Cyclone III to Cyclone 10, as the costs to upgrade all ModelSim PE seats and the doubling of annual maintenance have to be weighed against the very minor benefits of migrating to a device that is essentially exactly the same but with a different name written on it.