Mashable: "Right now, it looks like Siri won't be blown up and a [sp] rebuilt". Yeah, well, that'd most likely be a huge mistake[1] depending on your definition of "blown up" and "rebuilt", and also Siri's already been rebuilt twice.[2]
The Information: "One of Apple’s original plans was to launch its speaker without Siri included, according to a source." Of course — there are always contingency plans. To me, this is a much more damning comment about the Siri team than Apple's "vision".
[1] https://www.joelonsoftware.com/2000/04/06/things-you-should-...
[2] Mesosphere blog post, definitely reviewed and approved by Apple: http://archive.is/YNMLh