Any change would still be subject to the usual soft-fork rules, requiring a super-majority to be in favour of the fork before it activated.
Forgive me if I'm wrong, but doesn't that just mean if
-YOU- decide to do the update and fork?
Because you have [ control ] of the majority amount of clam?
Maybe I'm wrong, I'm not 100% sure of all facts. But its been the way I've been understanding this.