What do you mean with the plug? If you're referring to the potential hardfork, then it will indeed cause a massive decline that could last months before we see somewhat of a recovery process starting up. But that's only if there will be an unsuccessful hard fork. Right now people can only speculate based on how much support miners signal for BU. I still think that the chances are high that it's only done to 'scare off' Core developers to come up with a mid-way solution. I can't seriously believe that miners are willing to jeopardise their own operations to allow Bitcoin to fork. But then again, there are enough people with a massive hunger for power that might be willing to pull the trigger. RV & JW I am referring to.