Should we have a season 4 announcement by now?

I'm adding the spoiler tag in case of accidental spoilers

I am worried that with what feels like a lot of negative reactions to season 3, we won't get to see the story properly ended as planned

I'm personally enjoying season 3, even if it feels different to previous seasons. I do understand some of the criticism but I feel like that's all I'm seeing with only a handful of positive posts