That may be true, but it still doesn't help this guy. You can't say keep the camera because Sony might announce a lens this fall that may come out next year, and until then be unhappy.I said would not will as I have no information. Sony announced 3 lenses from 16 to 200mm plus 2 wide converters at launch which is more than either Oly or Panny.
I would say get something that you can use now and re-evaluate next year if new lenses do come out.
btw, there are about 20+ lenses that auto-focus and are compatible with the the G2 and G10 as well as the Oly m43 cameras.
My advice for now is get something that will make you happy today...not next year...if you want to wait for next year, return what you have now and wait.