I don't think so, but bubbles are notoriously difficult to predict when they will end that I obviously can't say for certain. There is a lot of capital on the sidelines still and plenty of dumb money wanting to get in that has either procrastinated on getting in or is realizing that it can take a while to transfer money to exchanges so are still waiting to get in after the recent spike and crash with Bitcoin (e.g: I have some family in that situation now). Given this, it's likely the bubble continues into 2018. I wouldn't be surprised if it doesn't last into 2019 though at the rate it has been growing.