Quote from a post on UK Sony Forum about availability of 650s :
"I went into my local Sony shop today and enquired about the PRS650. None in stock and none to come, it was marked as 'End of Life ' on their computer. It was still listed as current in the 2011 shop trade catalogue. The salesman didn't know of a replcement."
That's all I know, but sounds strange, and possibly a bad move by Sony salesman who may have said more than he should.
Don't really understand why this is the first we've heard though - where's the raging rumours about a replacement ?