Friends of mine were theory crafting a WvW alternative that had zerg control. This is what we came up with:
Large world map broken up into pieces (think 3 colored pie chart made into a puzzle).
Each piece of the puzzle is a population limited map (we were thinking 10v10 but that could be anything). Each puzzle piece is linked to 5-6 other pieces via portals. Way point in the middle of each piece is activated when all connected pieces are controlled by a single color.
You can see where this is going. There’s a LOT more details to this but it would quickly turn into a TL;DR.
Anyway just my 2ยข