Facelift After Thermage and Fillers

It
would be advisable to wait 3 months or so after Thermage to do a facelift, as
it takes that long to see any results. Also, you want to be completely
healed from that procedure. Fillers will not affect the timing of a
facelift.

Facelift and Skin resurfacing procedures (laser, Ulthera or Thermage ) and fillers are synergistic so as long as you wait until the Sculptra injection site is soft you should do fine.
Not a problem and there is no problem with the timing for a facelift. Sculptra, Radiesse, Jeuvederm, Restylane and other fillers address volume issues, resurfacing procedures corrects surface flaws associated with aging and face lifting addresses the sagging loose skin. Resurfacing procedures address skin texture, color variation (e.g. sun spots)- so all three are synergistic and complementary. It is very common in my practice to do all three approaches to rejuvenation at the same time

There is really no need to wait for surgery after Thermage and fillers.  In fact fillers can be done at the same time as surgery.