Well that answers Ackroman's point. He may wish to come back.
"What if" threads are OK if you are prepared to allow contributors to speculate within the bounds of firstly possibility and then probability.
However you've already hijacked your own thread by dismissing all possibilities other than one so what's the point?
Your limited thinking that a void left by SKY would never be/ will never be filled by anything or anyone else thus leading to an inevitable reduction of RL to a two bit northern diversion similar to morris dancing is laughable. I have no desire to contribute further on this.
I also note you've clearly made your mind up on the answer and derailed the thread further by limiting the question to "what would RL look like as a part time sport" already.