it would be better if they have online battle with this arena if they build in other country also.
I'm pretty sure that they're already planning something like this, the problem is its not that easy, so lets give it some time and for sure this option will be available sooner or later.
with the technology nowadays, I'm sure this online battle will be available soon, a competition/battle between Arena Space Parks around the globe sounds really good, quite catchy specially for the competitive users.
You can see it in roadmap. In 2018 will be the first VR cyber tournament