The current state of RPs have shifted over from strict interpretation of SC2 lore circa end of 2011-mid 2012 into something that is more "loose". As such, you may find RPs that has nothing to do with SC2 lore like fantasy/medieval RP or RPs that deal with some element of SC2 lore that have been contorted to fit the RP's said needs. There are no RPs that has a strict interpretation of SC2 lore as of this moment. Those that do are currently under hiatus, both of them DMed by me. The rest of the RP that has Starcraft elements within them has taken many artistic liberties with it.
Have a pleasant stay!