Fantastic Beasts 2: 11 Major Plot Reveals From Comic-Con 2018 Trailer
4. Grindelwald Targets Credence
As we hear talk of Grindelwald's vision for dominance, we see him looking up and, unless it's just some tricksy editing, seeing Credence Barebone.
Ezra Miller's character is part of the Circus Arcanus at this point in time, which is handily based in Paris. He also just so happens to be an Obscurial, meaning he possesses an immense destructive force within him - the kind Grindelwald would no doubt love to harness.
We see Credence targeted later in the movie, using his powers to fight off the threat, and it's clear that Grindelwald has big plans for him if he can get close enough. Newt obviously knows this too - he's there when his powers go off - so we could see a tug-of-war for the character play out which, given he's essentially a ticking time-bomb, probably won't end well for anyone.