The PeopleSoft Interaction Hub has been on Oracle's continuous release model for some time now. I still get many inquiries about this release model, though, so a refresher is in order. The next release is planned to be made available soon after the upcoming release of PeopleTools 8.54. This version of the Interaction Hub will be release 9.1/Revision 3. You can read details of the continuous release model for the Hub in the last Statement of Direction and FAQ. New versions of the Statement of Direction and the Release Value Proposition for the Hub will be published soon.
The current release model does not preclude us from producing a 9.2 or 9.3 release for the Interaction Hub at some time in the future. For example, PeopleSoft's Campus Solutions product has been on continuous release for some time as well, but they recently announced that they are going to offer a 9.2 release, and this option is open to us as well.