I really have no idea. On the one hand there has been so much noise about the new API rules, I struggle to see how people can't be aware of the impending death of their favourite reddit apps. On the other... some people are stuck in their own little bubbles that this news hasn't permeated, so they'll get a nasty surprise on the 1st when the apps stop working.
I'm fairly confident the aussie.zone server can handle more than double the current user count on the current hardware. And I can easily increase the specs if and when required.