One of the mantras of game design is that you should be able to predict the future, somehow. This is something that I read a lot, but that is plain wrong in my humble opinion.
You cannot predict the future. You should read and analyze your audience and try to understand how to bring meaning to them in a novel way. It’s not about prediction, game design is a practical craft. It’s empathetic, it’s about the present (and why not? also the past).
Leave predictions and forecasts to consultants, focus on creation instead.
PRO TIP: creativity is about cutting off things, not add more stuff.