This is a on-going debatable topic.
But its obvious
no one can read the future right. Unless you have some super nature powers that I dont know about
What we can do though is predict the best scenarios and prepare for the worse scenarios.
Predications that can effect price can be btc atms expanding, so more user adoption comes into the consumer hands.
Outside from the price point, I`d invest in the function of bitcoin itself that it provides.
Eg: Paypal fees? Does anyone love to pay 3% per transaction?
Thats only one of many things I see, when I invest.