The third and final season of Legion, Noah Hawley's mind-bending TV series creation inspired by Marvel Comics' X-Men universe, is almost upon us. Now's as good a time as any to watch the previous two seasons to try to figure out just what happened in those episodes before more installments arrive to throw a wrench in the works again. But one thing seems to be certain: Season 3 will pay off with a mighty big connection to the greater X-Men universe. As was previously teased in a trailer for the series' return, we now get …