I think we got most of the new moves by CoroCoro in September, just before release, judging by Serebii's September 2010 news archive. The Pledge moves and possibly Acrobatics were earlier. Kyurem's formes' signature moves obviously weren't until after release.
I know Hone Claws and Foul Play were revealed with Zoroark. I know we saw the Pledge moves pretty early, too. Gear Grind was revealed with Klink. Yeah, I think Acrobatics was revealed alongside Pansage. Leaf Tornado and Razor Shell were revealed early, too, I think. And Coil. --- https://dl.dropboxusercontent.com/u/82442627/Adelle.png I draw lolis :D https://dl.dropboxusercontent.com/u/82442627/IsawaKiyokoAlternate.png