I reckon The R35 GT-R will look a lot like the GT-R Concept on Gran Turismo Concept.
So many cars on GT3 were actually made exactly the same as in the game, some of the cars in question were not actually officially going to be made, but lo and behold after the game was released the manufacturers started making cars the same as the cars on GT3, can't be coincidence that game took years to make and rendering took a month's work for each car.
R35 GT-R will probably look a lot like the Z350 and will have 4 round rear lights, may even share a chassis, but let us prey that they don't share the 3.5 V6.
The RB26 must live on, I'm sure it will.
In time I will be proved right.