Musou game but the game is a crossover between Koei Tecmo and CAPCOM?

I had thought about a Musou game but concept was a crossover between companies, Koei Tecmo and CAPCOM, which is quite interesting because so far Koei Tecmo has never made a crossover Musou game between companies and generally more often makes Musou games from non-Koei IP (e.g. Gundam; One Piece; Zelda; Berserk; etc.). perhaps the characters that benefited most from CAPCOM's inclusion on this list are Devil May Cry, Okami, Sengoku Basara (unfortunately somewhat at odds with Samurai Warrior), Onimusha, and Monster Hunter.

It's just a shame that the hopes for this crossover concept are too difficult to realize because the relationship between the two companies has not been good since CAPCOM's lawsuit against Koei Tecmo.