Speculating, rumour mongering, and pretending to know more than anyone else are the hallmark traits of posters here!Good grief people, stop wasting so much time trying to predict when the next beta will drop, if this is the last beta before the GM, etc. If the random release of DP7/PB6 on a Friday afternoon in the same week as a previous beta release should have taught us anything, it's that literally nobody on this forum actually knows Apple's beta release schedule. We may see nothing from now until the iPhone event in September, or we may see 3 more betas. Only Apple knows for sure.
You should have figured that out by now!
Nobody here knows anything about anything do do with Apple release iOS release schedules.