I'm not trying to be inflammatory with this question! I can't any statements though from Oracle regarding the future of Solaris, and wondered if there were any press releases or official notification of future versions. As I understand it, work has been greatly scaled back on Solaris and it's not being developed at a great rate. Is Solaris 11 the final party, with endless security updates to come but nothing else?
There is a Solaris roadmap in page 33 of this slideware from https://blogs.oracle.com/openomics/entry/solaris_day_27nov2013_slides
Have a look to page 2 disclaimer first.