The price will probably drop for a few years. It will be a good time to accumulate, then it will rise and rise and rise. The duration will be many years, and Bitcoin will last for many more years beyond that. It will hold its own because of the inherent value that it brings. That is the important part that accounts for its longevity.
Indeed, we are on accumulation period like after 40 dollar crash in the early days. Long period of stable low price, time to stack up.