It's going to be Rikishi. He just got added onto the main news on wwe.com a few days ago. He's a good honest man like Jericho is looking for. "I did it for you Rock" remember?
The amount of people who it could be are insane which is good because it will lead to some unpredictability (hopefully) and bad because it's annoying not knowing who it will be :lol
I just think that they need to pair Jericho with someone who he can give a rub to and possibly help to advance. I just want to see him paired with someone who's already established like Kane, Big Show, Regal etc.
I wouldn't be mad if Masters was made the partner, or maybe even a Kendrick but I would love to see it being Carlito. It probably won't happen but they could play into the fact that he turned on his brother after he cost them the chance of regaining of the titles.