Looks like the added it. I tried it and had a number of issues with the PC12. The plane is pretty incomplete. I have a suspicion that they purposely didn’t add these missions because they knew the plane wasn’t ready.
I’ll go for another try but if the PC-12 pressurization being not implemented makes these missions a little more annoying because you can’t fly them above 18,000 ft. Vote to fix that issue so these missions will be more fun.