Obviously if Brock's return is step one, then Rock's return is step two. Rocky would have to have a reason to come back, whether it be to host SummerSlam or promote an upcoming film. Having him appear out of nowhere makes no sense at this point since his returns have always had a purpose. Hosting SummerSlam 2014 would be a great way to bring Rock back because it means he will probably appear right around the time Lesnar makes his return to build up whatever match he is going to have at the PPV. Having the two interact right away would not be the best way to go with this. There needs to be a reason for them to have a confrontation, and that is where the streak comes into play.