As this operating system has been promised since the very first day which was uhm a very long time ago, call me sceptical but I'll think I'll wait and see.
I sincerely hope that they do release it. If they do then good things will follow!
I thought they already released an Alpha version on their forums ?
They did. It was an unofficial release that seems like very little people know about.
I'm also betting on them releasing it tomorrow. They were exactly on time with their anon release, so I see a high chance that this will come on time. If not then maybe a 1-2 day delay at the most.