Panasonic GF2 14-18MP weather-sealed with a tilt-swivel screen, improved low light capability with higher dynamic range. A range of low light lenses (1.4 and 1.2). Battery grip for added speed. PASM, or just SAM. A concerted effort among many manufacturers for standardization, with mix and match M43 lenses, flashes, remotes, etc.. If Nikon and Canon were to enter the M43 fold, adapters that would auto-focus their lenses on M43 would be desirable.