In the summer of 2022, a new film in the Rocky cinematic universe was announced to be in development at MGM. Drago was to be a spinoff centered on Creed II antagonist Viktor Drago and his father Ivan, who was Rocky Balboa’s formidable opponent in the 1985 film Rocky IV. Creed II’s Florian Munteanu was to return as Viktor, with original Ivan Drago actor Dolph Lundgren (whose Ivan Drago was missing in Creed III after also appearing in Creed II) said to be reprising his role yet again.
https://screenrant.com/rocky-creed-spinoff-doplh-lundgren-details/