What next after an ipad 3?

Hi guys!

ive been keeping the ipad 3 with the retina display for a year now. Somehow, i felt that the ipad 4 was not much of an upgrade. I can easily run infinity blade 2 and other high end games on this. In other words, im highly satisfied.

What i want to know is what will the ipad 5 or 6 be like? I could probably upgrade when either of these are launched.