He says that he is still not finished and hasn't decided to retire. He is a really interesting personality first of all. Because a short time before this interview, I remember him saying like he doesn't want people to expect anything from him from now on. But now he says this.

We are talking about a 4-year ban from professional football. I don't think he will return. Even if he does it would be like signing for Saudi Arabia teams for money.
Even though it's hard to imagine him playing well when his sentence is over, I applaud his confidence and determination. When his sentence is over, he will be around 35 Y.O. and these days we still see many footballers playing professionally at big clubs. Cristiano, Messi & Ibrahimovic for example. Even though it wouldn't be for long, at least he would still be playing for some time, SPL seems suitable & right for him.