For those who view Israel typologically, what is the significance of the 12 tribes?

Many Christians view the historical nation of Israel that we read about in the Old Testament as a Divinely designed type of the Church, and their inheritance in the Promised Land as a Divinely designed type of the New Earth (commonly called "heaven"). My question is: Assuming this typology is correct (i.e. Divinely intended), **what is the significance of there being 12 tribes, each with their own region of the Promised Land?** (For example, does this suggest each church will have its own domain in the New Earth, or does it speak more generally to the acceptability of diversity within the Church, or something else?) I'm looking for standard views, not personal ideas, so a survey of the most prominent views (2-3 maybe) would be most helpful.