Full Interview with Kazunori Yamauchi

[Kamus]

Is it just me... or is anyone else getting kind of worried that they arent going to make a full GT5, instead, keep "patching" Prologue?

I hope they don't take this route. It spoils the whole freshness of getting a full game and having new challenges and features to explore and use. I really hope they don't get caught up in some silly idea of turning GT5 Prologue into GT5. Prologue is out... put your heads down and tails up and forget it and make a full blown feature-full GT5.

Why would you be worried?
if anything it's refreshing news to hear that prologue will be just as polished as the full version of GT5. except just lacking a lot of content.
the "engine" itself is going to become the engine used in GT5 full.
Good news all around.
Basicly, we get to see GT5 beta turn into GT5 retail, sans most content.