I've contacted the "Arduino team" many times offering to help...so far not one single response. I'd be happy to sign an NDA etc and as you say more eyes can't do any harm. I understand that you don't want too many actual developers and maybe they have enough (or maybe not) but you can have lots of people doing code reviews and inputting ideas.
There's nothing on the developers list either, not one post. So I guess we just have to wait until it's released then complain about the results. 
Rob