Gran Turismo 6 sold 5 million and and GT5 sold 12 million!

[Kerotan]

Nem said:
I wish they had just incorporated GT sport on GT7. I feel like it will steal the thunder of GT7 amd sales won't really pick back up.

Personally I'll be very happy if we get sport this year and GT7 in 2018.  That would be enough GT for the gen and would allow them to get started on the next GT for the PS5.