When is the new update to level up 1 level on towers and obs ???

We have been waiting for the new update on level up 1 lev on Towers and Obsticals , myself and many of my team mates are waiting for this event , most of our workers are free because we have been waiting, Alysea can you please give us an estimate date for this new update or should we use our free workers ???

They are probably waiting that all get the update before do the server update to introduce the new levels.