Remember that 'G.I. Joe' sequel we were supposed to get this summer and now we won't be getting until next spring? Well in case you forgot, today we have for you the latest trailer for Jon Chu's 'G.I. Joe: Retaliation.' A few of the major set pieces we've seen in previous trailers are still present: the destruction of London, the banners dropping over the White House, and the repelling battle on…