World Boss full release date has been announced:

As World Boss is a free title, revenue boosts for Q1FY24 will need to come from in game purchases. There will be a new battle pass and I imagine some new content packs at release, but they will only matter if people are playing the game and currently regular numbers are very low. There will be a new map and sounds like new game modes, so that may be more enticing to new players on release.

Based on World Boss being release just in time for Q1 I think we will see Age of Darkness getting its full release around Q2FY24