I believe that the game would benefit from cities having two build queues; one for buildings and one for units.

I understand the devs chose to have one build queue so that players would have to occasionally make some tough decisions. I also understand that they gave us the ability to hurry production with gold to make up for this. However I strongly believe that the game would benefit far more if they instead went back to WoMs two queue system, one for buildings and one for units, and removed the ability to hurry production.

This will push players and AIs to make many units, within the limits of their finances, from the start of the game and will encourage the creation and use of trained unit based armies. Hero's, summoned creatures, and tamed creatures will still be viable and fun to use but with this change trained units will also be used a lot. Currently the single build queue encourages players to avoid training units or to only make a very few; especially at the beginning of the game. I would rather see AIs and players fielding armies of units and when nations go to war with each other the mobilization and clash of said armies should be something to behold.

This could also encourage a couple of different play styles. Some players may focus on creating a wealthy nation in order to support a large number of armies. Others might instead focus on creating a more productive nation so that they can create more powerful armies more quickly at the cost of having few armies do to finances. While yet other players may instead focus on using powerful destructive magic and summoned creatures as the basis of their nations power.

You may say that these options are already available but I would counter that the one queue mechanic strongly discourages the training of units and the formation of armies until the late game. Having the ability to build units while at the same time building improvements will instead encourage AIs and players to train units, form armies, and make war with said armies from the start of the game with in the limits of their finances.