To $100k? I don't think it would take that long. After all it only took a year to go from $900 to $20,000 (22x) or 3 years to go from $150 to $20,000 (133x). So why should going from $19,000 to $100,000 (5x) or from bottom $3200 to $100,000 (31x) take 4-5 years while the adoption is growing at a much higher speed compared to 2017 (or from 2015 to 2017)?
Such a small price rise (in comparison) won't take nearly as long. It would be perfectly possible to see it reached in first couple of months of 2021 and not even stop there.