Here is big news from horses mouth itself. Shah Rukh Khan upcoming movies are Fan, Rohit Shetty's next and Raees. SRK has himself confirmed in a media interaction of his upcoming TV show that he is doing Rohit Shetty's next and will try to finish shooting as quickly as possible to release it in 2015 itself. It will be his home production.
Shooting of Rohit Shetty film will commence from March 2015. Whereas SRK will join the film cast from May onward.
As if now only Fan is confirmed for 14th August release. Raees will have 2016 release as SRK himself have confirmed that. As for Rohit Shetty, he is known to complete his film quickly. So, there is an outside chance that film will get release before the end of 2015 most preferably in Christmas 2015.
As for casting of Rohit Shetty film is not known yet. SRK has mentioned in media interaction that soon they are going to inform all, once everything is finalised.
Also Read - Shah Rukh Khan Upcoming Movies List