Teams have been able to sign him for a while. It's just a matter of if they think it's a good idea for their brand, if they think Sinatraa in his current state is worth it after having been so long without playing on a team, and if Sinatraa is down in the first place. Most T1 Teams probably don't want him due to both skill and brand reasons, and he probably won't accept any T2 offers so we're probably still in the retirement arc for him.