When will be ASE 15.0.3 end of life?

I asked this on Sybase NNTP forum back in Jan 2013.

Back then people told me that it will be 3 years after the release of next major version.

Since the next major version is not released yet, all ASE 15.X will live for at least 3 more years.

But SAP removed that forum. It can only be found in google cache now.

http://webcache.googleusercontent.com/search?q=cache:U8cJGaak2ksJ:nntp-archive.sybase.com/nntp-archive/action/article/%253C50f9084c%241%40forums-1-dub%253E+

Now if I follow the link provided by the replier in that old topic, I will end up in a website called SAP Product Availability Matrix (PAM).

https://websmp102.sap-ag.de/pam

In there only ASE 15.7 can be found, and the End of Mainstream Maintenance is 12/31/2020 .

So what about ASE 15.0.3?

Is the "3 years after next major release" rule still applies?

Or is it also 12/31/2020?