It seems that Capcom might be getting ready to announce Resident Evil 9. Over the weekend the game was suddenly added to Metacritic, which in itself is no proof, but as Resetera users point out, the site has previously added games prior to announcements.
In the same thread, another user also points out that the game store where they buy their games from has just added Resident Evil 9 for pre-order.
Capcom themselves