If there is someone worthy of the button, they'll get it. There's no set in stone rule, like, ok it's closed now for 6 months. It's a dynamic process.. They may just be closed for an extended period due to no viable upcomers. Which lately, has been the norm. I mean, they're not really "closed" they're just not gonna induct some guys for shitty reasons. As long as the machinery is running right, that is.
I'm sorry, I'm not the greatest at expressing myself in writing.