I'm curious as well. This was in an email I received early-May :
On May 31 the ArcGIS Online beta program will end however your beta account will continue so that you have plenty of time to transition to a subscription plan. This means that none of your work will be lost during the transition. All your customization, maps, apps, data, users, links, groups and hosted services will move seamlessly to the released product in June.
You will receive communication in the next few weeks with details about ArcGIS Online subscription plans and your options. We are committed to insuring you have plenty of time to transition to the right plan so please continue to use ArcGIS Online and tell us how we are doing!
I also remember receiving an email that pricing would be released 30 days prior to the final product release. Well if end of June is the final product release.........where's the update? I need more than 2 weeks to convince my boss to invest in the subscription before all my online mapping is lost.