Hopefully we'll see Broadwell on the notebook side before the end of this year but it's really up in the air right now about whether that happens or if Intel will do a slight bump to Haswell and do a mobile Haswell v2 like they've done on the desktop side.
I bet they'll do full Broadwell sometime between Nov-Feb. Doesn't make sense for it to be any other way.
People always try to analyze with assumptions, while simultaneously ignoring the big picture.