No one knows when the price will again rise. However, there were at least 2 times when bitcoin peaked and then plummeted, and subsequently stayed well below those peaks for long times.
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The first time was after it peaked at $200 in April 2013. It then dropped and lingered in the $50–$100 range for 7 long months, before recovering and shooting up past $200.

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The second was after it peaked near $1,100 in November 2013. It dropped, eventually falling to about $300. It then lingered in the $300–$500 range, until early 2017, when it finally returned to the $1,100 mark. That was more than 3 years.

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The next upswing might start soon, or it might start after another relatively long wait. In fact, Jeff Berwick recently opined that, while he believes the price will continue to rise into the stratosphere, it might remain around the $3,000–$5,000 level for another year or so. (Key word = "might.")

    _(Source)