They're already here..

The ThreeRingScrolls told of their return

...

Their defeat

Was merely delay

Til the time after Spiral Knights opened

When the sons of SEGA would spill their own blood

...

But no one wanted to believe

Believe they even existed

And when the truth finally dawns

It dawns in fire

Jegus Grist, whatever man, dragons will be flying all the way across this game pretty soon.

Don't tell me I didn't warn ya.