That new Ninja is powered by a 296cc parallel twin developing 39bhp at 11,000rpm, a marked improvement from the current model's 31bhp figure and significantly more than the bike's closest rival, the 26bhp Honda CBR250R. The 300 does appear to be fuel-injected, also a welcome upgrade from the carb'd 250 that's been sold in the US.
The new, 636cc ZX-6R will make 129bhp, which should make it the most powerful "600" on sale next year.
We've previously seen spy shots of the 2013 Kawasaki ZX-6R (it looks like a facelift of the current model) and the 2013 Kawasaki Ninja 250 was just officially unveiled. It's likely the 300 will ape that model's styling, because there's no tiered-licensing laws in the US, Kawasaki is free to punch the engine out for a little more power. Recently, the CBR250R has captured more than half the Ninja's market share; it was previously the 5th best selling motorcycle of any type in the US.
The Ninja 400 (a sleeved 650 that somehow makes insurance sense in Canadia, meh) has been listed on this document in previous years, but hasn't been brought to the US.
There's also mention of the Versys 1000, but it's also unclear if this means that model will make it to these shores.
You can download the full spreadsheet here. See anything else of interest?