Potential Non-Arrowverse Crossover Idea

Borrowing from the 5th Wave movie, a really cool potential idea would be an hourlong special (potentially from 9p Eastern to 10p Eastern one night? Maybe?) detailing the alien ship from that film passing over the various states in the U.S. This would be a BEHEMOTH ship, as the width would easily be the length from the Canada-Washington border to the very southern tip of California. 

9p-9:20p- My idea would have it first move over Los Angeles (9-1-1) and Seattle (Grey's Anatomy and Station 19) simultaneously. 

9:20p-9:40p- Next, Texas would see it, which would bring 9-1-1: Lone Star into the mix. 

And the final twenty minutes of the hour would see the Chicago trio (Fire, Med and P.D.) see the ship pass over Illinois. 

I just had this idea last night and it might be super complicated but also super cool to pull off, as it would need the cooperation of seven different writers' rooms and also potentially three different TV networks (see below):

9p-9:20p: 9-1-1 airs on Fox while Grey's Anatomy and Station 19 are both ABC shows

9:20p-9:40p will see no conflict, with 9-1-1: Lone Star being a Fox show as well

And the final twenty minutes will see the Chicago trio as all three air on NBC 

And it might not end with one episode, as this would be a way for all seven shows to prepare for a 5th Wave plot in real-time or add in some work beforehand in terms of potential ideas like news headlines and even NASA getting involved.

Keep in mind this is still very much an early-outline, potential stage idea (that I'm not writing, let me just point that out) that might not even make it to the small screen but is anyone else even remotely excited about this potential idea? Let me know in the comments.