It is no great leap to infer that the impending new version of Photoshop CS6 (as yet not quite officially announced) will come with a new version of the Camera RAW plugin. Usually, Adobe keeps details of new releases tight to the chest before the official announcement. Rumors about Adobe are generally unconfirmed. This time, however, things are slipping out.
Adobe has posted the free 30 day trial of Photoshop Lightroom 4 for download.