Mourinho is expected to sign for Chelsea when his Real deal expires in June.
Jol said: "I don't know if it is fact he is coming back. But I always knew, because he told me and others years ago, that he would like to come back.
"I said the same when I left England because this is the country with the strongest league. London is a football city, the best football city in Europe. I was very happy to come back and I imagine he is the same."