So, they've definitely been preparing people for several decades now. We're all aware of that, but there seems to be a lot of "chatter" that they will play this card relatively soon, and that it's no accident that Spielberg-stein's "Disclosure Day" movie is coming out soon.
Wernher von Braun famously told his colleague that the alien invasion deception would be the "final card" they would play.
I actually think there's a bit more to that. For a long time now they've been promoting the notion of "Ancient Aliens" pioneered by the Jesuit-educated von Däniken, and the one series has drawn a huge audience.
That's also why I belive they need to maintain the Globe earth cosmology at all costs, vs. FE, since with an FE covered by a dome ... there's no room for "aliens" from other "planets" ... and these would be recognized for the demons that they really are.
What I expect is that these "aliens" would show up and claim that Jesus, Moses, and Mohammed were all in fact aliens that came to help mankind ... and that's why Antichrist is depicted as attempting to simulate Christ's miracles, where at the end he tries to simulate Our Lord's Ascension and is struck down at that time.
Given the prepping they've done, presenting an Alien Antichrist (as I refer to it) would result in a complete loss of faith and "faith" in 99% of all humanity. Not only would Catholics be tempted, but other religions. That's the only way that the entire "world" could end up worshipping some AntiChrist figure, since Christians would never accept a Muslim Antichrist, nor Muslims a Christian one, nor Jews a Muslim one, etc. ... this is the only way I can see that the entire world would worship this clown.
Ancient Aliens also promote the notion of "panspermia", that life on earth was brought here by aliens, either life from the beginning, starting with microbes that evolved, or also where the alients showed up and genetically engineered apes in order to give thems intelligence, i.e. they created human beings from apes. Ironically, the Ancient Alien series has had some great episodes debunking evolution, and showing how "higher powers" had to have been engaged with human beings. Of course, they kick the can down the road. If aliens made humans, then who made aliens.
Von Däniken came up with his "Chariots of the Gods" nonsense by claiming that the "angels" described in the Bible (and elsewhere) were in fact ailens. So ... how about, uhm, that they were in fact angels, and demons. He and his modern Ancient Alien followers do a good job of explaining that all these cultures speaking of these beings from the sky with amazing powers, knowledge, and technology ... that they couldn't all have just made it up out of nothing to come up with strikingly similar stories, that there had to be a kernel of truth. But how about, von Däniken ... the kernel of truth is that they were in fact angels and/or demons, including the Nephilim described by the Bible, rather than aliens.
If we could produce a show, I would call it "Ancient Angelions", and it would have almost the same content as that series ... except you propose that angles and demons are actually responsible for the same types of things.
In any case, St. Peter in his inspired epistle actually predicts "scoffers" in the end times who would deny the reality or existence of the pre-flood world. Strange that we have even a Father Paul Robinson denying the existence of the Deluge on account of "muh science" and SSPX also endorsing that Modernist heresy. Yes, it's hersey. People often shoot from the hip in making accusations of heresy, but there's no debating this one.