Format Button Request

I’ve been using the visual mode when posting, which is kinda neat. However, I’ve noticed a few formatting options that happen to be missing. Such as [sup] and [sub], which are nice when you’re doing scientific notations and footnotes. And [table], which I need with the latest series of posts and pages I’m now working on. Any possibility the former may show up with 2.5 and the latter sometime in 3?