The large hype and bubble with Bitcoin at the end of 2017 means that everyone with access to a computer - and the skills to use a computer - has already heard of Bitcoin.
This also means that anyone stupid enough to believe the hype already has bought Bitcoin. There simply are not a lot of new fools out there to ever pump the price again
The only hope HODL'ers have is to convince - and teach - the mentally retarded to buy Bitcoin, as there are not more normal fools to buy Bitcoin (they already HODL).
And therefore the pump will never happen