A friend working a Oracle told me a few years ago, that Oracle has the policy not to comment on rumors like this one (especially on some strange website). The reason she told me is simple: Once you start commenting on one, you give more credibility to the ones you don't comment later. It never commented to the steadily reappearing rumors that SPARC and Solaris would be killed later the acquisition of Sun, and now we are at 11.3 and M7/S7. I remember that competitors came into our offices and speculated all day long about the demise of both. Oracle later published a roadmap because we as customers wanted it, but they never commented in a public way on those rumors.
I further think it hard to believe that people where informed on "you stay" meeting and those report their knowledge to this forum (which would be in my company a breach of confidentiality) , but not to the press and foremost not to their colleagues not to be informed, colleagues you are friends with or at least have worked for years. You inform all at once, because things like that are almost impossible to keep secret. That just doesn't sound sound.
Furthermore the list of allegedly axed systems looks strange: Somebody says S is dead and T is dead and M has a future. When you moving all the company in the direction of cloud as many have stated here, you don't use the largest systems, you use the small or middle sized systems. A rumor axing the M-Class would make more sense than a rumor axing the T- and S-class, especially when looking to my datacenter.
It may be true or not, but something here is strange about this rumor.