I think a lot of this comes down to how you perceive the park in its current state. I dig a lot of the attractions at the park and I think Diagon Alley is the best themed area in the world.
But it’s only above Disney’s Hollywood Studios on my “Orlando parks I like to spend time at” list. Obviously that’s heavily affected by my personal preference — I am not a big fan of Studios parks. For me, I’m less concerned about new attractions being built than I am with general vibe improvements (though, why not both! I’m greedy!)