True but I'm afraid the past has nothing to do with the present. Beta 5 might have had less issues to fix that when comparing to iOS 8 beta 5.
If it's not released today, there's an even higher chance it won't be released next week.
My information below is based on the event taking place on the 9th of September:
If beta 6 is released today, that'll, as I've already said, give Apple another 20 days to get the GM ready.
If beta 6 is released next Thursday, that'll only give Apple 13 days to get the GM ready.
So in my opinion, no beta 6 today, no more beta's.
But as always, no-one knows, we'll find out in less than four hours.