If act 2/3 features Teutonic knights, will the battle of Grunwald be present and will Malbork castle be in the game?

Malbork is technically in Poland, but who’s to say that the game can’t take place in areas NEAR Bohemia. From what I gather, Grunwald has been implied in the past, which means Teutonic knights.

There are already some topics discussing this.

Will we be be fighting Teutonic Knights?
The Battle of Tannenberg / Grunwald / Žalgiris 1410

But short answer without you reading through these massive discussions is that all three Acts are build around incidents of kidnapping and rescuing the king Wenceslaus IV.
And therfore taking place in 1402-1403

But battle of Grunwald was held in 1410.
Therefore it is highly improbable that we will meet Teutonic knights.

Alright. (20 characters)

Why is there footage in the trailer of a huge battle with the teutonic knights?? … im sure the last act of the game is against them and their invasion, that was the games original plan , well thats what was wrote about it.

The footage of Teutonic knights is strange but should not be taken as proof of them being there

Though if you read a bit through the first linked discussion, there is a mention of MadSmejky (a dev) saying that we might see a Battle of Grunwald.
But I highly doubt it will be in the first 3 acts.

The idea behind this game is Hussite Wars (acts 1-3 taking place before them). And Teutonic knights had no part in that event.
If there will be a Battle of Grunwald it will be somehow connected to Jan Žižka and his origin or back story.

That is not true. On Kickstarter or main page of the game there is nothing said about Teutonic knights.
There is only the misleading video.