Looks like the Wanderlei-Jardine rumors where spot on according to Wanderlei Silva's newest post via his personal website:

“I’m leaving right now to sign the Jardine fight contract and you are the first ones to know officially,” said Silva on his website on Friday. “I am starting to train hard again to be able to get the victory.”

“This week I went to talk to (Randy) Couture and I’ve asked him to be my new coach. He was very happy with my wish and he will teach me some wrestling. I’ll be doing the fighting training with his athletes in a time where everybody train together.”