^^^^
I remember reading the tea leaves on this for many years. Here is how it went...
1- Hansen comes out with his proposal, after he has purchased the land....HEY!!! a new arena. Everyone here is very excited.
2- Increasingly, two things happened. One, it became clear that Hansen was interested in the NBA far more than the NHL. Many here ignored those hints, and continued to push SoDo.
3- The second thing was that the City Council was not excited about Hansen's SoDo idea, and some here suggested that the reason was that, if SoDo was built, Key Arena, which is city owned, would become unnecessary. That made sense, but for whatever reason, SCC dragged their feet on SoDo.
4- AS SOON AS OVG CAME FORWARD WITH AN IDEA FOR KEY, the SCC all of a sudden was on board the idea.
5- As you can see, SCC fast tracked it, and that, apparently, is highly unusual for Seattle politics.
Conclusion: All along, the SCC wanted to protect the city's arena. Now that said arena is going to be a show piece after the construction is done, there is absolutely NO WAY that the city is going to allow another arena to be built. If they dragged their feet when there was a CHANCE Key might be remodeled, how much more will they drag their feet after it's done.
Basically, Hansen now has a big chunk of high value commercial and industrial property, and he will do OK eventually selling it for development. But, there won't be an arena.