Several things could be updated already, such as the roster (at least those under contract), the schedule, perhaps a pre-season page documenting trialists who have appeared in camp and the various locations the team has traveled to, etc. Perhaps a mention of SlamminSounders?
I'm going to begin working on it after I get home tonight. I just thought others of you would want to contribute. It's actually quite fun to invent history. Remember to cite your sources for statements of fact! Sounder at Heart, MLSsoccersoccersoccer.com articles, Mayer and Ruiz articles, etc. are all totally acceptable sources to which to attribute info.
Remember, in 8663 CE, when genetically-mod'd humanoid historians begin their inquest into documenting how we in the present day cobbled rudimentary lives out of the primitive hand we've been dealt, they'll begin with Wikipedia, and we want #TheFuture to have Sounders fans.