But I doubt that it will fall dramatically. And even if it falls back to few 1000usd, it will really soon grow back with even more market cap because people will then go crazy to buy it back and really low price.
As much as I admire your optimism, just to put things into perspective. It took many of the actual winners (think Amazon, Intel and so on) from the dotcom bubble up to seven years before they recovered and some still haven't recovered to this day (a recovery defined as reached its previous high which would be considered the point of the bubble deflation).
With that in mind, although it doesn't necessarily mean the same thing will happen for cryptos, but it is possible that once the bubble bursts, it might take as much as half a decade before things are actually back to where they once were (the upside is that, once recovered, none would likely rate it a bubble anymore)