Those are quite old news and while I still believe some of these are true, especially the 3.0 Skyactiv X for Europe, in NA I think we are going to get a turbocharged 3.0l Skyactiv-G (hopefully based on the ND Miata 2.0) with about 350hp.Rumors from BestCar magazine of Japan:
Translated best I could...
Please take it with grains of salt ....
The coming CX-50 will be a derived model from next CX-5.
Think of them as Cayenne Coupe vs. Cayenne (or MB GLC coupe vs. GLC)
The next-CX-5 will be slightly lengthened to 4600mm (181in). Height will be marginally increased to 1680mm (66.1in). The more sporty CX-50 will be of the same length, but lower by 60mm. (2.36in).
Expected release date for CX-50 is 2023.
As for powertrain, high end models will have the new inline-6 (3.0L Skyactiv-X) + 48V mild hybrid, or Skyactiv-D 3.3L, making 285hp/37kg-m(267ft-lb) or 285hp/61.2kg-m(442ft-lb) respectively.
Lower end models will offer choices of Skyactiv-G 2.5L+48V(190hp/27.2kg-m:196ft-lb), 2.5T(230hp/42.8kg-m:309ft-lb) or 2.2L Skyactiv-D(190hp/45.9kg-m:331ft-lb).
On drivetrain, two choices will be offered, RWD or AWD.
Tbh that's all I am interest in