Devon and Somerset Devolution: done deal by March 2016?

According to this document (page 15) the full bid is going in on 18 December 2015 (always a popular day to bury bad news or controversial planning applications!) and provided all goes smoothly ( as it no doubt will) it will be done and dusted by March 2016:

http://www.mendip.gov.uk/CHttpHandler.ashx?id=11322&p=0

Er, what is Mark Williams being delegated to do between now and 18 December and now and March 2016?