I am very excited to see what's in store for Captain Lapidus, I hope that we don't have to wait too long to find out. As we were reminded in last night's finale replay, Frank has been singled out as an element in some plan of Ilana's team. I just hope that our Cheeseburger-In-Paradise-Pilot with the big heart and open mind has a chance to decide his fate, when the time comes.
Some of the theories on Frank are pretty wild:
including that perhaps Frank is an older Sawyer. Also, of possible interest to Bigmouth at Eye-M-Sick: "He is named after Frank J. Tipler, who has expanded on the philosophical idea of the Omega Point created by Pierre Teilhard de Chardin. Teilhard's Omega Point idea is a major key to the mythology of the entire show and Jacob, specifically." (Lostpedia)
I would really like to see one more flashback for Frank, to see if Jacob touched him as well. Here's my crazy thought, Jacob touched Frank so that he would survive the crash like the rest of the "touchees" after piloting 815, but MIB intercepted Frank the night before and got him drunk so that he wouldn't be able to pass flight reqs the next day and he'd be grounded, and not make it to the island. Widmore finds out later that he missed the flight and gets Abaddon on the job to get him on the freighter with the others. Just kidding. Sort of.