I think that the price will crash a bit at first, as an adjustment to the crazy pumps that we've witnessed this year. However by 2020 we can definitely expect further pumps coming in. The price will definitely be above the $10k range though.

If you really want a guess from me, i would go with around $15k-$17k.

Could be much lower, could be much higher. It'll depend on a lot of things, including bitcoin forks and regulations from government that can't be predcited.