Either that or the AmigaOne partners (Eyetech and Hyperion) have exclusive worldwide licenced rights to their respective parts of the project. This would exclude any other third party licencing deals with Amiga OS.
The Amiga OS part of the site basically says we own it but don't talk to us about it, talk to the AmigaOne Project parterners.
I assume that what it really means, is that as long as there is a dedicated third party developer for Amiga OS there will be future versions.
Then again there is that IRC Q&A with Gary Hare coming up...