Actually, we're not sure if the Rohirrim movie is on anymore, with the LOTR & Hobbit movie and game rights now for sale... Which is a shame if true, I think it would have been a cool project and it could (have been) a boost to potential LEGO sets.
For reference: https://variety.com/2022/film/news/lord-of-the-rings-hobbit-tolkien-zaentz-rights-sale-1235176036/