What ones can you think of? I don't mean price stuff, all of them will arrive at some point, I mean use cases and predictions about Bitcoin in general.
One of the most interesting ones is when the first rumblings of forks turned up with Bitcoin XT or whatever it was. It was declared that it would be an altcoin here and elsewhere to much uproar. When it finally did come to life as BCH it was indeed an alt. And now S2X is slowly being declared an alt too by the exchanges themselves.
Prediction. S2X will not happen. Come back to this post on November. You are welcome.
Some of those companies and mining pools will remove their support on S2X and no nodes will upgrade to S2X software. In short, it will not take off.
Anyone knows that S2X is dangerous because there should be are tests done on it for at least a year to find bugs and find stability.