This rumour won't go away. Silva is returning in the next six or so months. With the title picture the way it is in the MW division he is far from an instant title shot. GSP is doing a six-week camp at Wild Card. Freddy Roach says GSP will evaluate once it finishes. Rory MacDonald said that GSP is only interested in big fights (not the title) if he returns and there is none bigger. Silva is 40 and last fought in January. St-Pierre is 34 and has been away for two years.
GSP should not come back IMO. 2 years is too much he's only going to tarnish his legacy IMO. This could be Jordan with the Wizards
I think it would be a major cash grab. But it's a few years too late for me to get really excited about it.
It'd be anti-climatic. I'd want to know the outcome and would likely shamefully watch it but maybe not.