GT4 combined with the Aston V8 field should mean a decent grid and the majority of them in good looking cars
But yes, it would likely mean less coverage for GT4. But the GT3s are the main attraction to the sport and SRO know that. It's a compromise that they are willing to make - a larger GT3 field at the expense (coverage wise) of the GT4s, but coverage is the only downside I can see for the GT4s...