Interesting new infos ... But really January 1st ? Is that a joke ? Coinbase doesn't deserve to be part of the cryptoworld ....
Anyway, I agree with you that it will fall hard, even disappear maybe , who knows ... If the price get too low, the mining reward will be insufficient and it will disappear ... and hopefully Coinbase with it ;-)
I am not holding now, I am actively shorting it, and it has been quite profitable...
In 3 blocks (BCash blocks) it will hit Bitfnex ...... so you know what you have to do ....