What's something that, if not in Seasons, would disappoint you?

I'd be disappointed with no way to set the length of Seasons or to control what type of weather happens in each world.

I'd like to see weather separated from Seasons. For example, in some parts of the world at Christmas time, it's hot, so I'd still like to experience the holidays but be able to set what weather I want to happen during said holidays.

Another thing that I would really like to see is summer holidays for kids or the option to have summer holidays for kids.