New Yamaha R1 teased?

Yamaha have released a teaser video, which could show glimpses of the new R1.

The video shows design sketches of the upcoming sportsbike with what appears to be a single-sided swingarm as well as Ohlins forks.

Many of the sketches show a rought outline of the bike, with no underseat exhausts, which have been a feature of the R1 since 2004.

There is also footage of the bike being ridden on track, although there is no sound, leaving us guessing as to whether the new bike will stay with the crossplane crank engine of the current R1.