That is a great question. I wouldn't even be surprised if the bring that sports party game they had cancelled for Switch back from the dead. Another thing is that, aside from Super Bomberman R (That was also a million seller), they barely have taken advantage from Hudson's IPs this last decade. Could this make them look back at their catalog?
Of course, there is no way to know about inside Konami, but I write some prediction pointed in Japanese community.
1. Change in top management
Konami's stance for console was drastically changed after Hideki Hayakawa took the president's chair of KDE. First he uses Konami's IP (baseball, soccer) for constructing e-Sport field and get success. Then next tries to recover console development.
2. Retirement of Hideo Kojima
Hideo Kojima is famous game creator, but as a executive he doesn't do well. After PS-SS generation Konami's traditional IP started to decline at market and he stroke a final brow for various Konami's IP especially Castlevania franchise as a co-president. Even worth, his project, Metal Gear Solid became too big to develop on Konami not a big company. Finally He retired and Konami needed to reconstruct its development team for years.
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