I'm not gonna unlock the page just yet; I'm not sure I like all of the changes you're proposing, plus I'm not sure if an unlocked Teams page is the way to go. I definitely think the teams should keep their fan logos rather than using the Teamicon images, since the logos are a much better way of at-a-glance getting a sense of team culture. I also don't know that I like how bulky the page gets when every team gets an icon. I almost think the page should be trimmed down to the core 24, and then have a secondary page that lists all teams (or at least, all the teams that aren't the core 24)? And that could be an icon grid, or it could just be a plain list w/o icons at all. It'd let us keep the current page locked, which I find attractive on the gut instinct of "don't let the page one layer deep from the front page get edited regularly," but I don't know if that's an instinct to follow.
I dunno. The only thing I'm personally firm on is "keep the fan logos;" I could prolly be convinced of anything else. Open to hearing from other users and/or wikiteam members.