Maybe they pushed it back to May so that they could reveal the console and then keep the hype going by talking about more details of the console and its exclusives/price a few weeks later at E3, however, I don't think they expected negative news about their console before it was actually announced. On the other hand, Sony revealed the PS4 in February, and is giving it a 4 month gap before they will reveal new details of the PS4 at E3 hoping that the hype for the PS4 will not die down. This has so far worked for them because MS didn't reveal their console so there has been nothing to challenge the PS4's hype.
Also, the fact that Sony didn't actually show the console may have left many people very interested and curious, and Sony could steal some of MS hype right after the 720 is announced by releasing the look of the PS4 with some more info. Either way, we will see which console will have more hype between E3 and November cause its in that time frame that Sony/ MS will attract buyers for their consoles.








