ya, I had a dream of the ultimate brikwar (probably from too much building right before going to sleep). only in the dream, forum members where holographic images, but it did lead to the realization of this possibility.
One could set up mirrors on the corners of the battlefield, making sight from different angles possible. Plus everyone is watching what all is happening, so they know what is up. In order to do a battle report, simply record the video chat, and take a few pictures of especially interesting moments.