We all know that JMS had built in escape traps so that if a major character was unable to continue, the rest of the story didn't fall apart. So after one season, with Michael O'hare (he was a really nice chap) ill health Bruce Boxleitner, took over Babylon 5's command, so my question is if Michael had continued, would we have seen his girlfriend Catherine Sakai going to Z'Ha'Dum and Sinclair going after her, as Sheridan chased after his wife Elizabeth? of course we then have a problem with, who was Valen?