If its in (which seems likely), I suspect small dogfights. I can't imagine we will be able to own anything "frigate" sized or above. I put frigate in quotes, because people have very different versions of whats a frigate, and the best scale I can think would be the assault frigates from reach. I imagine we will be able to pilot "corvette" class ships and larger fighters. The best example of a corvette class (as I see it, the definition of classes of space ships isn't very clear cut) would be something like the millennium falcon from star wars. Small, maneuverable, multipurpose ships that can be piloted by a single person but can support a larger crew. Note that my scale of classes of ships comes from the game Homeworld. I could see there being missions where we participate in larger space battles though. Whether we use personal craft, or use something provided is a good question. I also imagine the presence of frigate class or above could happen, but would be NPC controlled. At least, that's how I picture it.