IIRC I read it somewhere on AmigaWorld - it was a posting from Rogue, where he mentioned that they try to get it out in time for the christmas business this year.
I'm sure they will try ;-) , but bearing in mind that the OS4-PR was initially "promised" to Christmas 2 years ago, and first came to users in June last year, better not count on anything.
Better sooner than later though. :-)