Is There A Patch Release Calendar For ST-PI & ST-A/PI

Hi All,

I've searched high and low for this, and now putting a question for the experts.

Is there a release calendar for the Patches for ST-PI and ST-A/PI ?

I mean, for example,

     if

          we have

               ST-PI 2008_1_700 PL 8

     is there

          a document/OSS Note from SAP

               which shows

                    the timeline for releasing the future Patches Levels eg:

                                   ST-PI 2008_1_700 PL 9      September 2014

                                   ST-PI 2008_1_700 PL10     December 2014

I already have the OSS Note 539977 - Release Strategy for Add-On ST-PI

but this OSS Note

          a) doesn't give the release timeline for the Patch Levels

          b) doesn't cover ST-A/PI

Hence the question:

     Is there a Release Calendar for the Patches for ST-PI and ST-A/PI ?

Thanks and best regards,

Andy.