Elden Ring developer FromSoftware could be used to assist in the development of games based on manga and anime.
It’s unlikely the developer would be given an adaptation as its main project, however, given the success of Elden Ring and its other original IPs including Dark Souls and Bloodborne.
There are certainly plenty options to choose from as the Kadokawa Corporation is truly massive, with several layers and branches of other companies underneath it.
FromSoftware’s parent company is the Kadokawa Corporation, a huge Japanese firm with several entertainment brands under its umbrella, including magazines that publish Neon Genesis Evangelion, Cowboy Bebop, and other manga.