I work in the electric biz (AEP), and I can promise you this: there will be no new nukes in the foreseeable future. All this about construction starting by decade's end is just wishful thinking on the part of the nuke biz. I wish it were so, but it IS NOT happening.
Well we will see, but I disagree. I think another couple of plants will be started within the next few years.
I am not in that business so this is probably way off base, but from what I have read, it appears to me that Grand Gulf, Mississippi, has some chance for expansion from one reactor to two.
I did a Google search on Grand Gulf and found what I think is an interesting web page that has some pretty recent information, including a pro-nuclear power rally in Mississippi: http://www.aaenvironment.com/NewNukes3.htm
Here's a photo from the webpage: