I like to see all crazy theories which pops every time Valve hints they are going to release something.

Given Valve already promissed Meet the Pyro and a new update, guessing it now is not hard work.If anything, it's hard to NOT see Meet the Pyro everywhere.

However, I have no idea of the real purpose of all this cheese, peels, lints and circuits will be used for. Maybe a eletronic cheese gun which shoot banana peels and is fueled by pocket lint?