There is no schedule when the engines, called the Gavran, came to the ship's cars. The tipsters say that the power plants could be "relatively fast" along with the upgrades to improve the charging rate.
If rumors were accurate, that would be a logical step for Tesla. Longer range is an obvious selling point, and Tesla could help fight the competitive EV models like those of Audi and Mercedes. Filling faster, in the meantime, might be almost necessary if Tesla would use its third generation Superchargers. The bigger question is whether PMR will significantly affect the price. Although accessible enough to fit in model 3, it has not been used by Tesla's most successful cars so far.