Bloodstained has been cancelled on Wii U in favor of a Switch version. Nintendo is to blame here, if I understand the story quotequotes below. They are screwing over their Wii U customers again, it seems:
During our Kickstarter campaign, the Wii U was at the height of its popularity, but the situation has drastically changed after the release of Nintendo Switch.
"This change made it difficult to receive the necessary support from the hardware maker, which has led us to drop the Wii U development and shift the development to Nintendo Switch.