I hope the ergonomics will be excellent like the E-1, or better.
I hope the weight of the camera will be heavy like the E-1. Good for balancing with the Platinum range of lenses.
I hope that noise can be an option. Sometimes having grain/noise is good. Especially in B&W photography.
I hope the E-3 has got excellent battery life. (See below).
I hope that the E-3 will break the 12Mp barrier. (Go as high as possible, good for the professionals needing the extra MP for print work).
I hope they do not implement the battery draining Live View in this camera. It's a nightmare for battery drain. There are prosumer models for this purpose. But then again, if they can overcome the battery drain by means of a more efficient circuits, by all mean.
I can only hope... ha ha ha...