So basically we need some massive grassroots adoption and then the banks will be the bagholders who helped bootstrap the mining industry with their pump of BTC. Poetic justice.
I don't imagine adoption being too far off, especially with Memo working so well other services that will eventually pop-up to further increase adoption! :D
Basically anyone who's in bitcoin cash needs to start doing spend and replace to get the velocity moving. There's a lot of stagnant, speculative money just waiting for others to adopt.