It doesn't matter when you are in any given timeline - the T-1000 is still laser focused on finding John Connor and completing its mission. The search is taking the liquid metal killing machine through Mortal Kombat 1 as part of the latest Khaos Reigns update. See just how adaptable it is in the official gameplay trailer:

You're about to get served! Madam Bo steps out of the Mortal Kombat 1 story mode to deliver a deadly dose of booze, burns, and hot tea as the latest downloadable addition to the Khaos Reigns expansion. See what the purveyor of Madam Bo's Tea House is really capable of in her very own spotlight trailer. Take a look:

Mortal Kombat 1 may have invaded the lawless island of Fortnite, but there are still crossover battles to be fought on the home turf of Khaos Reigns! The latest threat comes from a familiar franchise, but T-1000 isn't coming alone! Watch the first teaser trailer: