I would absolutely not be even a little interested in this.
This, I might be willing to try, but I'm thinking more like how they run "World vs World" in Guild Wars 2. It's basically a PvP mode where you have a huge zone, and you capture camps and forts, build up their defenses, run supply caravans, etc. It's not about quick "matches" between small parties, but more of a perpetual war zone that only resets once per week or so.