Hey guys, I just saw a commercial that said there will be a new Episode August 9th. Not much info is known about it at the moment, but according to zap2it, it is called You Don't Know Sponge.
Also, the commercial says that Patrick and Spongebob get into some kind of fight.
Source: http://tvlistings.zap2it.com/tv/spongebob-squarepants-you-dont-know-sponge/EP003077660436