He was obviously joking with the 7-10 year comment. Funny that they go ahead and make a serious headline out of it. Here's the full quote:
“Not too much longer, maybe 7-10 more years. Maybe one year, maybe five years no one knows. If I feel good, I am ready to fight. I’m sparring in the gym with young guys and big names from UFC, Bellator, I feel good,” he said. “If I’m worse than them, then yes I may retire. If I am not worse, maybe I am no better, but I’m not worse, so middle, so I’ll fight.”
Either way, he's a fucking legend and I'll watch him fight forever.