Bitcoin price will go below 100 $ and later > 1,000,000 $
All the lost coins will become active: price will go below 100 $ https://bitcointalk.org/index.php?topic=5134441.0
We will have an upgrade: quantum secure
The world will know that the Bitcoin network is still working.
Thereafter it will climb and we will reach > 1,000,000 $
Before solving 'shalecoins'
https://bitcointalk.org/index.php?topic=5134441.0 it can't happen.
I am not sure what technology you are talking about but my opinion is if the prices of bitcoin falls below $100 from the current price then it will be the end of bitcoin era for sure.