On WWE.com, WWE tried to explain in an article what John Cena’s free agent status really means. It doesn’t make any sense at all and there wasn’t any details regarding the matter, but WWE is trying to explain that Cena became a free agent after the Superstar Shake-Up without even revealing how that suddenly happened.
The article went on to question whether Cena would remain with Smackdown or would he be heading to Raw, but at the very least he will be appearing on Raw in whatever capacity he can. The article even went on to question why even push him as a free agent, since it was noted before that WWE is finding a way to get Cena on both shows.
Source: Wrestling Observer Newsletter