It all depends if the GT3 continues to be used as the homologation car. If my theory is correct (that the GT3 continues to be used as the homologation car for the GT3R) then it will eventually go turbo. Also Note: The timing of this also depends on the evolution of the GT3 rules (especially BoP).

There are quite a few options that Porsche can take. It all depends (as usual) on the rules evolution and which option makes for the best business case.

Example: Porsche could opt to use the GT2 as a homologation car for both the GT3R and GTE cars and then keep the GT3 as non-turbo model, or it could use the GT2 as the homologation car for GTE and the GT3 for the GT3R.

 

I think at the moment, the new GT3R still has quite a long life span still ahead. It is very quick (with better aero, new engine and increased wheel base). It is suffering from unfavorable BoP. It is hoped that the BoP will be corrected for the 24h Nurburgring  in May. Watch out for that to see the competiveness of the car.