Last Episde (Nikki and Pallo)

First off, I really liked that episode. I thought it was cool insight into two characters that have been lingering around the main "crew." I thought the connection between them and Sawyer (con-artist theme) was cool as well. I picked up on something interesting, which I'm sure everyone heard but didn't necessarily understand the gravity of at the time. Locke said something to Pallo as he buried the diamonds; something like "things don't stay buried long on this island." So, the directors of LOST aren't idiots- does this mean Pallo and Nikki will get out of the bind, to say the least, that they're in now? I think that quote is really, really significant in terms of most of the characters, their secrets and obviously was incredibly pertinent to the episode.