There were rumblings of a 3DS XL announcement at E3 2012, but they were disregarded by Nintendo. Hideki Konno of Nintendo, however, did “express his affinity for the DSi XL’s increased real estate” and said that “he finds the larger screen is much easier to gaze upon”.
In the past, Reggie Fils-Aime has expressed a similar favour of larger screens. It makes me wonder if those reports were simply wrong about the timing of the 3DS XL. I still think it could be on its way.