Map Wrap

Both Cortex Command and LieroX employ a much higher resolution in the terrain.
I think that what KAG has now could easily hide the seam, provided that entities transitioning over it can be done properly.

 

One big problem with wrap-around maps is that if you don't code for it, every time you use a distance-check you can end up getting an incorrect value; you're checking distance, and you get the entire length of the map instead of the distance that goes over the map edge. Cortex command had this problem.

But still, it would be incredible to encounter an obstacle on the left, and simply move right to get around it that way.

 

Even though MM himself said it's unlikely, I still really hope to see this in the future :)

The game modes resulting from it could be phenomenal.
You could make a building map that is essentially a world. Huge and "never ending" and people could come populate it.

 

The logic to determining if the distance check should be done with wrap would be abs(x1-x2) > map_width/2

I imagine that the biggest trouble is rendering the seam cleanly (efficiently) and transitioning entities over it.
It must be a pain when your entities are physics-based objects, as in Cortex Command's case.
Curse those real numbers.

But yeah. I can see if there's disproportionate amount of work required to make this happen,
better spent on actual game to be played on the map in the first place.