The least we can say is that Konami doesn’t seem to have much interest in the video game industry anymore. Indeed, the Japanese company has significantly reduced its large-scale productions. The only exception is the series Pro evolution football
In an interview with Famitsu, translated from Japanese by Gematsu media, Konami designer Noriaki Okamura specifically points out that something new is coming for the famous franchise and that an announcement should be made in 2021.
There are also plans for a future Bomberman announcement coming soon.
It could be a mobile game, a remake, or a new episode. In either case, you need to be patient before you know more. As a reminder Super Bomberman R.The latest episode has been available on Xbox One since June 2018.