Just my opinion, I would look at songs from bands like the Lumineers and The Head and the Heart. While they have clearly defined verses and choruses (for the most part -- ha, ha). But, they seem to add another high energy section that really could be a chorus also. Bascially they are maximizing variety and energy, but they don't lose coherency or meaning.
Two examples:
1.) Lumineers: Hey Ho -- http://www.youtube.com/watch?v=VjVlbK7OOrc The section of "Love – we need it now" could be considered a bridge, but it is more chorusey to me.
2.) The Head and The Heart: http://www.youtube.com/watch?v=j3CqR_m6NO0 The "I am on my way" section definitely sounds like a chorus, but it comes pretty late and doesn't seem to have much to do with the song (ha, ha). I think that it adds a whole different, temporary direction to the song and adds a lot of energy.
I realize these aren't contemporary country lyrics -- they are too obtuse for Nashville/country writing, but dang they sound pretty good! I think that approach could be applied to country songs. Much rather go that direction that the rappin' stuff.