I would hope so. Reiza has been releasing new versions not too long after teasing new content. It's been a couple weeks since they've teased suzuka and then superkarts, so I'm surprised it's not out yet.
Yeah, well, two months, ie. nine weeks ago. Which is not too long in the grand scheme of things, but I'm sure a lot of people (myself included) are just anxious to see the new content and, hopefully the code updates (at very least the wheel rotation thing).