We are planning a webinar for late September to announce the details of PPM 9.1. (Watch this forum for invitation details.)
The release is due in late September, and will include the "What's New, What's Changed" document with all the details.
Phase I of BO reporting is part of the release, though we won't actually replace the current reporting engine in this release. Meaning customers can upgrade to 9.1, and then plan a "migration" to the new solution over time/releases.