I live in France. For a time we had loads of poke places, still do. Insane that people pay €14 for a bowl of rice...
The biggest up-and-comer now is smash burgers (€15 burger prepared in 5 minutes anyone?), but might be tied with fried chicken which is also everywhere.
Prior to this we had a wave of French Taco joints (which are not tacos at all!).
I don't live in a very large city though, so perhaps Paris, Marseille, and Toulouse have trends I haven't seen yet.
It appears to be maintained, which is a point in its favour.
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