The historic chapter release dates can be found
here, so we're likely a little away from Ch21 being released. While we wait, I'd like to see a discussion on what players expect or would like to see in the next chapter.
I don't think they will start a fourth manufactory type, but there is space on the menu for another Discovered Resource under Unurium, so perhaps a new special resource? This could then tie into end chapter wonders.
I would like to see the Training Grounds and Mercenary Camp have more upgrades than the Barracks, to catch up in levels. I need someone else to outline the likely unit upgrades for Ch21, as I mostly cater.
I could benefit from another upgrade of the Builders Hut to lvl 6, premium or otherwise.
Perhaps there will be an Ancient Wonder tied to the Cauldron somehow? Increasing strength or durations of potions?
I'd expect the chapter to be Ascended Goods focused again, so I am upgrading some more Ascended Mfgs.
Maybe a trader upgrade so we can buy Ascended Goods from the Wholesaler?
I'd expect the Ch21 road to offer 920 culture, costing 1,800,000 gold and 180,000 Supplies based on the increases to previous road upgrades. It will probably costs Basic Ascended goods.
I'd be interested to hear other players expectations and desires for Ch21.