not sure about the XS, but I believe that Sony will continue with some version of the 960 at a price point below current. The reason I say that is
(1) I purchased mine 2 weeks ago from local Sony Authorized dealer ...so I think retail from Sony may drop again
(2) and because of statement in press release:
"There's still plenty of consumer demand for direct-view televisions,''said Tom Evans, vice president of television marketing for Sony Electronics. "They provide people looking to step-up to HD television a great value and for others satisfied with standard definition, an attractive price and solid performance."
I don't believe that a $xxx set will top the line for Sony
(All my opinion and nothing I can support with facts)