[KHUX] Game lifetime?

KHX lasted 3 years. This is, of course, a different business model. With the knowledge that we are likely to see KH3 around March 2018 (knock on wood), when do you think this game will stop running events? Will its death be quick, or slow and painful?

I anticipate they will see extreme user dropoff after KH3's release, and they will taper off the events for the following year until there is nothing. I don't know when it's reasonable to expect them to shut down the servers, though. Or what the game might look like without any running events.