Whilst browsing some Fantastic Beasts posters today (as you do), I spotted the Deathly Hallows symbol in the background.
Then I noticed it in another poster.
And another.
And then I started to see it in promo images, "first look" images, and the Bluray covers.
This one is more subtle - note the circle behind them, the triangle formed from the lines hanging down, and the middle wand formed by Newt
This one it is formed by the umbrella making the circle, the tower giving out the light as the triangle, and the Eiffel Tower forming the wand line
Even the title credits - look how the only three letters to be "breaking apart" are the A in Grindlewald (the triangle), the I in Crimes (the wand) and the G in Grindlewald (the circle)
However, I then realised its not just in Crimes of Grindlewald, but in Fantastic Beasts and Where to Find Them.
This is the promo character shot for Fantastic Beasts - note the Deathly Hallows symbol pendant handing from the ruins
This is the soundtrack and Bluray cover. Note the right edge of Newts coat forms the side of the triangle, with the wand flair from this wand forming the otherside. He stands in the centre forming the wand, and the curve of the S forms one edge of the circle. Very subtle.
This is the Fantastic Beasts movie poster - note Newt stands on the circle, the stairs form the triangle, and he forms the wand.
This is a "first look" image, released before Fantastic Beasts came out - note how Newts legs, and the light from above form the triangle, the light shaft straight down forms the wand, and he is standing on an arch shape (forming the circle)
They have weaved it into almost promo shot. In Harry Potter and the Deathly Hallows we learn it is known to some as Grindlewalds symbol, although it is not referenced as that in the films, and in Crimes Of, Grindlewald has the Elder Wand (part of the Deathly Hallows), but we have not yet seen the Invisibility Cloak - owned by Harry Potters father (and borrowed by Dumbledore when Harry was a baby).
Highly intriguing...