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.

Sources: https://www.resetera.com/threads/video-footage-aaa-harry-potter-game-leaked.72233/

    https://www.reddit.com/r/gaming/comments/9kmudg/unannounced_harry_potter_rpg_has_killing_and/.          

Leaked video: https://www.youtube.com/watch?time_continue=1&v=2-HER1xKQl4

Interesting. Looks impressive. Developer any good?

Here is a link to the wiki regarding the developer.

Avalanche_Software

Their most notable recent project I would say was Disney Infinity, though it appears as though WB is really building them up (again according to rumors, they are increasing staff and are being given increased resources).

In my experience they are bad. They have good ideas but the execution is always lacking. They did just cause, mad Max, and now working on rage 2

Rocksteady?

Avalanche Software and Avalanche Studios. I think you are mixing them here.

Also Avalanche Studios (Just cause andsoon) are really good.

I thought it would be Avalanche Studios developing it but it seams people mean Avalanche Software and the Video looks awesome.

Reading the from the Youtube video it seems pretty ambitious. There's so much potential in a concept like this, if it could have the depth of Dragon Age but set in Hogwarts. Really want to see more.

Need to wait and get more information before I decide how I feel about it.

Were the old Harry Potter games based on the films on Xbox/Playstation 2 any good?

Looks not bad but I am not a Harry Potter fan so that's it for me.

Those stone physics are impossible on current gen.