A lot of people assume we will be able to straight put maxed summoners and cards on land. However we already know the buildings will be tiered and you will need to upgrade them. To me it is then reasonable to guess that the lvl of building on your land will limit the lvl of summoners/monsters production, similar as lvl caps in different leagues work. In this case it might take a while before a lot of land has maxed buildings and maxed summoners are needed on all of them. But in any case the demand for summoners should go up (a lot).
@mattclarke was saying the same about it. Still though, it means leveling up summoners/ monsters that will likely be getting pushed up in price, so having maxes now might be more valuable, even if they aren't being used to full capacity.
Will be interesting :)
I understand @mattclarke's comment is on the amount of available working spots per land, whereas mine was on the max cap of each spot. Likely some sort of both could be implemented.
For example: You have a rare field with a lvl 3 farm built, this gives you 3 working slots, 1 for summoner and 2 for monsters. Then your rare summoner lvl 3 or any higher will be producing 30 wheat per hour. When you upgrade farm to lvl 4, you open up another working spot and the lvl 4 summoner (or any higher) will produce 50 wheat/hour.
Another possibility is that for the upgrades of the buildings themselves you will also need to assign summoners and monsters and have those "builders" work there for x amount of hours. That is besides the materials and DEC/SPS cost.
Also another beauty of land is that the number of working slots can be adjusted with time, that is when the number of players and new pack extensions grow (more cards in the game), more slots become available per land. For example maxed out building on a land has 6 slots in 2023, but 8 slots in 2024, 11 slots in 2025,...
Will definitely be interesting :D