Below is Falcon Arrow’s post on Reddit:
You’ll probably want to tune in.
Admittedly a bit more generic than the Shane surprise. Something tells me you will still enjoy it though.
Dave Meltzer also reported on F4WOnline.com that there is a big surprise planned for RAW tonight, and that the rumor is that it is Sami Zayn. He added that the surprise is scheduled for the start of the show.