As already said, those Daleks weren't from the alternate universe. Indeed, when "Pete's World" was first introduced earlier in the Cybermen story, RTD addressed fan questions about the existence of Time Lords or a Doctor native to that universe, and RTD stated that the Time Lords are unique to our universe and there aren't any in other universes, by extension, no alternate Doctors.
Granted, RTD's not in charge anymore, and it remains to be seen what Chibnall's views on this matter are, but considering in over fifty years the closest thing to an alternate Doctor is what some sources say about the Dictator in Inferno, and even that's been debunked in the recent Lethbridge-Stewart novel series, I don't think there's any desire to bring in Doctor(s) or Time Lords from any alternate realities.