Hello Jose Luis,
Information on future product releases gets available until the actual product launch; furthermore, this would be announced at the Intel® Newsroom which can be found at: http://newsroom.intel.com/community/intel_newsroom?iid=ftr+press
At this time there is no information about having a fourth processor generation family .
OK, thanks by the info.
I am going to buy a notebook with a processor i7-3920XM.
I expect that it not get very old rapidly!