I am very disappointed to have learn that Warhammer Old world will be using square bases. Why not have them as circle bases so you could just the same models for
AoS and Old World? Simply just make movement trays that hold circle bases so they can be played in rank and file formation.
I have been looking for a reason to get into
AoS for years now and finally was deciding to learning about the Warhammer Old World. But not so sure again, I just can't see myself buying and painting orruks twice to have one set in square bases and another in circle. I will also say the square bases as a display piece also simply look ugly.
https://www.warhammer-community.com/2021/07/21/square-bases-and-kislev-ascendant-see-your-questions-about-warhammer-the-old-world-answered/