It is going back to $100 - where it belongs.
Why $100?
If you're going to pick some arbitrary number, $5 is probably more representative based on historical data.
Bitcoin never sat at $100 for an extended time as it did at $5 for a long stretch in 2012.
Even $650 (or as some would say, $666) is a more representative number than $100, as it has hovered around that point for longer than it ever did at $100.