Topics have already been made about this, but this one is aimed in a different direction.
Previously, I mentioned me thinking that the post credits scene in EQG3 contained spoilers for EQG4 (Human Twilight meeting Pony Twilight), but then it turned out that what Pony Twilight said contained spoilers from S5.
I noticed this a few months ago, but it was pointed out a few minutes ago by someone who called me blind in the process.
But in EQG2, it contained spoilers for EQG3.
EQG4 showed the portal outside CHS cracking into a million pieces at the end of the movie, so it could mean either the show or EQG5.
Of course, EQG2 was the exact same movie that "wrapped up" the movie by having the lead villians just walk off screen and that being the end of it.
I hope this wall of text has improved your life in some way