The Castlevania series has been around for decades, and a ton of games have been released in that time span. Lately, Konami has been focusing on releasing previous entries via collections on platforms, including PC and the Nintendo Switch. As for new entries, unfortunately, it’s more complicated.
According to Castlevania director Yota Tsutsumizaki in remarks to Axios, Tsutsumizaki said that “I’m not in a position to comment on the company’s business, but in general, it is very challenging to release the main titles of a long-term series on a regular basis”. Tsutsumizaki also mentioned that “Mr. Igarashi’s retirement from Konami is not related to the prolonged interval between series releases”. As for Konami making a new Castlevania game, Tsutsumizaki said that “I think it depends on what our users say”.