Collider talked to Mark about his plans for filming a sequel to "Ted" and "Transformers 4". Here is a quote from Mark.
“We’re shooting Transformers in May, and then I believe we’re gonna do Ted 2 right after. They’re working on it now and we’ve kind of gone through the negotiation process. The great thing about it is Seth’s ideas for the second one are sick. He comes from the world of episodic television so he knows how to tell the stories, man, in a way that most people don’t, like for instance The Italian Job we’ve been trying to do the sequel for 10 years. He’s a different kind of guy.”