Can you give any estimate to how much admin and tech admin time that would need per week, Texas? The economy, weekly updates, effects of map size change, arenas and leagues sounds like more than has ever been achieved in that timeframe. There'll also be a lot of things to tweak based on feedback, eg the kits.
The rest of it sounds like a merge of previous revs, which were each seemingly close to the limit of what was possible in one go. But what is appealing here that we haven't already seen to not be appealing? I don't see what there is to stop a repeat of the citadel revision, what is pushing people up to the surface? What is there to stop Prot 4 and Str II users scaring anyone else away from PVP? Why wouldn't you want non-US centered arenas?