I was suggested to make an edition with all the girls of the Gremory clan, that is, a version of a package that contains all of them; rias, akeno, koneko, asia, xenovia, irina, rossweisse, venelana and grayfia
but the challenge would be not only to use the models already created but to try to improve said models, so that there is a change and it is worth it, as was the case of raynare
similar to when a game some time later releases a version with all the improvements and dlc included
that would be the idea and the challenge, but it would still remain to be seen if it is possible to do it