Given that it has been established lore that FZ during their 1000 years on their colony made use of extensive VR/AR technology to create any kind of artificial environment that they want, if after learning that HADES had failed to destroy life on Earth, either it could have sent its digital consciousness to Earth at light speed and subsequently sent its physical form to Earth at a slower speed or using some kind of quantum entanglement communication becomes aware of recent events on Earth and using it’s vast computing capacity would seek to understand its opponents
And potentially due to the fact that it’s existence was the result of multiple failed copies of various individuals who were mentally unstable at best, would possibly result in whatever simulation of 31st century Earth to be at best slightly inaccurate or various flaws that would make it completely inaccurate to from reality, such as the staple LEGO silliness and humour that would be present in their recreations of otherwise serious events
With the potential that NEMESIS would seek to recreate events of the past albeit not being completely accurate to determine ways that it could possibly take against Aloy in the real world once it does fully arrive on Earth, with the possibility that as per the blog about the upcoming game, that the Lego version of Aloy would be “guided by a hologram of Elisabet” could be NEMESIS itself portraying itself as Elisabet to manipulate Aloy into doing what it wants, with the possibility that the Lego version of Aloy could become aware of the truth and seek to delay NEMESIS and help her real life self