In the latest Dev Diary for Star Trek Online, we learn details about how to aquire the new Odyssey class starship! Characters must be level 5 and have the rank of a Vice Admiral to operate the starship. For those of you who are behind, however, any character below the required rank will recieve an inventory item that can be opened once you achieve the Vice Admiral rank.
While the final stats of the starship are sill classified and subject to last minute changes, Cryptic claims it is "the pinnacle of Federation starship design" and the largest vessel ever created by Starfleet. This massive size affects its turn rate, but it's design makes it more of a long-range vessel that can operate for long periods of time away from support.