Tony Stewart leaving JGR.... done deal?

I was told by a source that Tony is gone at the end of this year and that Chevy is buying out his contract. He is going to the same place that has been reported on, HASS Racing, and that Ryan Newman is going too. With sponsors Burger King and Office Depot. No news on who will be replacing Stewart in the #20 but word is that Rookie driver Joey Logano who has been very strong in his early runs in the Nationwide series.