2011 
Let’s start the timer?
<b> Will Arnold Schwarzenegger be acting in this? </b>
No. His term as California's Governor ends in 2011, precluding him from any acting until then. Any appearance of Schwarzenegger will be in the form of pre-shot footage such as flashbacks to the first 3 films. He said during the 2003 recall that he would not act while in office.