It seems that a new Leica Q3 camera is expected to be announced in 2022. Here is a report from LeicaRumors: the above picture is part of the latest Leica FOTOS app – the camera displayed looks like a Leica Q but with a different position of the side buttons and a new tiltable screen (first for Leica?). For comparison, here are the back views of the Leica Q and Leica Q2 cameras:
Also from LeicaRumors: one of the official Leica M11 videos shows Leica's head designer Mark Shipard walking into the Design Studio in Munich “where Leicas of the future are created“. On the wall behind him, you can see a long line of different camera models showing the past iterations of the S, SL, Q, and M product lines. At the very end of the wall, you can clearly see three different cameras in the S, SL, Q categories that are covered right above the just-announced M11 - does this mean Leica will announce four new cameras in 2022 (S3, SL3, Q3, M11)?
Via LeicaRumors