Randomly accurate rumor site Digitimes suggests that, according to industry sources out of Taiwan, Apple will release a Retina display iPad 3 in March, then turn around and ship a more significant iPad 4 in October.
The 9.7-inch iPad 4 is expected to come with much upgraded hardware specifications and integrated applications so as to compete with an array of Android-, Wintel- or WoA (Windows on ARM)-based tablet PCs to be released in the fourth quarter, said the sources.
This is an almost identical rumor to one that made the rounds last year, with numerous sources -- including iMore -- hearing that Apple was at least toying with the idea of releasing iPad 3 in October of 2011. Whether those rumors were ultimate inaccurate, or display constraints required Apple change plans and revert to a spring 2012 release is unknown.
Likewise, whether or not there's any substance to these rumor rehashes, or an attempt to suppress iPad 3 sales with early chatter of an iPad 4 is impossible to say at this point. It does seem unlikely that Apple would release two iPads in the same retail year