You can tell Sylvester Stallone is having a helluva good time with The Expendables franchise, but the writer/director/actor wants to bring a bit more humor into the mix. Taking to Twitter this evening, Stallone commented on the tone of The Expendables 3, which he is currently writing, and hopefully getting Jackie Chan into the cast as was previously rumored. He also gave a brief update on an action star who would not be making the cut and alluded to an injection of “young blood” into the franchise. Hit the jump to see what he had to say.