It seems the 3DS version of Splinter Cell wasn’t the only one to get socially neutered, as it has been confirmed that the PS3 Splinter Cell Trilogy will have all online aspects and co-op removed:
“Unfortunately … the online part of the original games won’t be included. Sorry no co-op will be included in the trilogy.”
This is somewhat of a downer, as they were an enjoyable part of the original games. However, three fairly large single player games for the price of one is still good value if you ask me.