This thread is a better post than this and much more in-depth. I pretty much agree with most of NinjaWJ's comments. So this post is more of a reminder and some ideas as a supplement to his post.
Can we get maps that scale according to how they behave like in 1v1s? I want a 4v4 map that feels like 4 or 3.5 1v1 maps.
Something as simple as this:

It's kind of kind of like Red Ball Express but horizontal instead of vertical.
The retreat times should not be a big problem here if you are retreating from within your side since it is equivalent to a 1v1 retreat time. It may take a lot longer when you're in a different side though, but that's a strategic sacrifice you'd be willing to make to help teammates.
I think this could be great because it takes all the benefits of 1v1 with it into 4v4.
Are there maps like this already made? I don't mean the troll maps, but actual candidates for automatch.
Something like Red Ball Express should not exist because although it is a fun map in terms of explosions and action, it is not a very strategic map. It favors front to front engagements, artillery, and ranged tank destroyers. It does not favor flanking, mobility, or cutting off.
I think an important change is also to quadruple the # of territories in the map. Although this may be a controversial change, I think it is what 4v4 needs. Every territory should be 1/4 effective though: game pacing should be minimally affected. I think VPs can remain 3 though.
Note: my title is bad. We need more strategic 4v4 maps, not necessarily bigger. But I think a horizontally large map can promote more strategic play