51 vs 15?

After pausing the Lighthouse wheel while Jack scrolled towards his number, we get a clear shot of plenty of the numbers. I'm sure that many people noticed that #51 was Austen, as in Kate Austen...

Is it possible that, along with all other opposites (Good and Evil, Black and White) that Kate and Sawyer (Number 15) are going to be the replacements for Jacob and MIB respectively, relying as the complete inverse of one another's number... or am I just thinking way too far into this?

Also on Fandom

Random Wiki