Quote from PESInsight:
"- Pro Evolution Soccer 3 will be EXACTLY the same as Winning Eleven 7
Ok, maybe I was exaggerating when I said a few. But I guess this is quite significant. What it most likely means is that the two games will be released roughly the same time in Europe and Asia respectively. This obviously saves a lot of people money on import costs and the hassle which English patching causes. Hopefully, what this also means is that the game will be much improved over the previous versions as more time is being spent on it."
IMO, PES3 should be out in about November.
That's when PES1 and PES2 came out anyway.