There seems to be some footage leaked from a AAA Harry Potter game. This could be the Avalanche (studio owned by WB as of 2017) Harry Potter game that was previously rumoured. The game is apparently an open world action RPG taking place in the 19th century, and you can apparently create your own character.
Benji, who is one of the insiders on Resetera, is hinting that the game will not be coming until at least 2020 and that it is likely a cross-gen game at this point.
EDIT: I can't seem to embed the Youtube video so I have provided a link below to it instead.