Played Beta 2 a lot this week and my feelings are as follows:
First and foremost cities don't feel important, at least at this point. By the time you can build a still crappy city I can use the resources to hire a bunch of NPCs and rush you. Even with troop production my NPC army will roll the city. Perhaps a low level building that allows you to recruit NPCS from city would help.
Definitely need more than 1 base movement for sovereigns. Think Should be 2 for fighter types and 3 for average and 5 for move specialists. At present the only reasonable strategy is to kill the closest thing to you at the beginning of game to get your movement up. At the same time there needs to be some cap on movement. Got to over 20 one game. At that point I could just attack whatever wherever.
Cities need some base defense based on population. One farmer shouldn't be able to walk in and take a city of 1000. Even if no troops the pop should be able to defend as peasants.
Allowing to build anywhere within your current city radius without the 'touching' rule would allow much prettier and easier to manage cities. It shouldn't have to 'touch' a previously built building.
Would like to see ability in some way to build roads. I know the Caravan makes a road appear but I don't think it gives a movement bonus between cities...this may be coming in other tech trees though.
Would like more resources. Stone for Castles/walls. Gold for income bonus. Ancient ruins for tech bonus. Maybe an improved iron replacement like mithril or something to make better weapons/armor. Perhaps specialized tree patch for better bows. A natural wonder for pop growth bonus.
Please make more than horse resource for movement bonus. Riding lions, or tigers, or reindeer, or elk is important to me. Just make the horse resource have different animal variants with appropriate skins available. This will add TONS of customization and coolness to armies.
Starting essence should be set low enough to only allow a couple cities. But you should be able to regain essence by sitting in town. Sitting in town with your sovereign should also provide some production bonus. This way it would give a choice between city building and conquest/exploration. At present I can pretty much just spam a line of cities as I adventure.
Also I'm not sure limiting gardens gets the right result. If I can only have 2 gardens per city then I HAVE to spam a bunch of small 'garden cities' to supplement my main cities. My feeling is that I should be able to build one super city with the right effort and investment, but there should be advantages to having specialized cities. I think the better solution would be an ascending cost structure for gardens. At a certain point the cost/benefit wont be there for most. But its still an option. To this end I would also like to see a way to build MORE than the preset number of structure at a certain city level...perhaps at a much higher cost. Putting hard limits on the number of city structures seems to encourage city spam. If I have the funds and resources the game shouldnt stop me from from making a super city...it should just be inefficient.