When I read the GT Sport page, it's like PD are trying to sell something. Gran Turismo was like a Honda: It sold itself.
Had PD just marketed it as GT 2017, we would know what it is. Gran Turismo Sport could be followed up with GTS 2020, 2025, etc. whatever. Leaving Gran Turismo_ as the next game after GT6.
I've given up on wanting to know what this game is.