In one old post Medierra stated that’s good for the company to make different game, cause working constantly on same game/genre can be tedious and also it’s not viable strategy to have only one game.
Since Crate is small team, I can’t think of they can change quickly their priorities and work on many games at the same time. So if they are passionate about city builder, than the game will turn to be good.
We from GD community of course will eagerly await for any news regarding Grim Dawn and hopefully will see GD 2 or another expansion in the future!