There was a discussion on the end of service date of z/VSE 5.2 last Friday on VSE-L. The discussion list is here .
As I see it the questions were answered. That is it is a good idea to post z/VSE related questions on VSE-L. In most cases the z/VSE community has the answer.
So far there is no end of service date for z/VSE 5.2 announced yet. z/VSE 5.1 end of service will be June 30, 2016.
I also want to point you to the z/VSE status web page, if you have questions about end of service dates for specific releases. That web page is... [More]