Ship to Ship boarding would be pretty cool, however extremely frustrating
Landing them against stations or planets however would be very interesting way to remove sov or to do factional warfare. It would also, in theory require a hole new kind of ship as there is nothing in game currently designed specifically to land troops. My guess is you would need to have a "LST/LHA" version of the carriers to do it...that would be cool. and be a interesting fight as you have carrieresk level ships holding station over a planet being covered by other ships as they attempt to force a landing....