Orci, Kurtzman Not Returning

Roberto Orci has confirmed that he and his writing partner Alex Kurtzman are not returning to write Transformers 3 on the Don Murphy forums.

So Bob and Alex is it true. you wont be involved this time round.
It's true.

Sorry to hear that Roberto, really I am. Are we in good hands with Mr. Kruger? Does he know his Transformers?
He does. He really did his homework. He's awesome.

There you have it. Orci and Kurtzman are out, Ehren Kruger is in. Whether that is good news or not probably depends on your feelings regarding much of the humor of the second film (the Twins, Devastator's balls, etc) as most of that came from the minds of Bay and Kruger. As always, time will tell. Link from TFW2005.