Id love to see an "eventual" invasion on the tower ( think mass effect ) preferably at the end of the series in a massive last push DLC or something to that effect. It would be tragic yet emotional to have our home destroyed but it would convey that invigorated sense of urgent despair and bring us the feeling of near extinction that we've been told we have now. Gotta remember that by then we will be so use to kicking alien ass it won't really feel like that anymore . Tower Invasion ... 'nuff said ( what u think ? )