Thanks to John Permaul for sending in the following:
I was looking at WWE.com, and on the main page they're interchanging images for the main events tonight. For the WWE Championship MITB match, if you save the image, it's labeled as the following:
You can view it here:
It's interesting that they have "NO MIZ" in the image. It looks like it is possible that he might get added to this match.
As WZ reported, WWE has been discussing adding a name or two to the WWE Title Money in the Bank Match tonight, and The Miz is one of the names that has been discussed.