How is the EJ/Nicole double blackmail going to play out?

Anyone have any thoughts how this story will play out with Nicole knowing about the Sydnapping and EJ knowing about her framing Arianna?

Since Corday says Sami & Rafe will be together by Labor Day, it has to be before then...which means the Day Hope/Night Hope storyline has to end.

EJ will more likely be able to prove Nicole's guilty than she will him, but of course that won't matter because he'll lose everything with Sami, so it's enough to keep his mouth shut.  I love this storyline b/c EJ seems to want to start doing the right thing, but he finds a way to get his client and friend off the hook at the same time if he blows Nicole out of the water, he's toast.   

Any ideas how Arianna will be proven innocent?