Post-Season 5 Premiere Speculation and Theories

There are any number of possible theories I might have in regards to time travel and how it might explain many of the different past mysteries and questions of the show, but I'd rather wait on further developing those once more information is revealed concerning how time travel operates in the Lost universe.

Instead, I'd like to focus on different theories I am committed to or have merely considered, which, though they are of a less epic nature than time travel, are still very intriguing. Here goes:

• Matthew Abaddon, the mysterious man whose motives are still very hazy, was tasked with choosing the individuals who would comprise the Kahana science team. Now deceased Naomi Dorrit, hired to protect the science team, complained to Mr. Abaddon concerning his selections on the grounds that none of them any real field experience or military training. He replied very calmly, saying (among other things): "...Don't ask questions, just do what you were hired for. Every member of this team was selected for a specific purpose..." I propose to you that the reason for each of the individual science team members being chosen was that each one of them has previously spent time on the Island! Daniel Faraday was seen in the opening scene of "Because You Left" as a construction worker and can be heard filming Dr. Pierre Chang's plea for help on behalf of the Dharma Initiative. (see bottom of this post) Charlotte stated that she was looking for the place that she was born to Daniel in the Season 4 finale as a reason for wanting to stay on the Island. Finally, I propose to you that Miles is the son of Martha and Pierre Chang. (Frank Lapidus was recruited, I believe, solely because he noticed the discrepancy with the fake plane wreckage and called Oceanic to point it out.)
• I know it's a bit of a stretch, and I very well may be proved wrong in next Wednesday's episode entitled "Jughead," but wouldn't it be interesting if the ringleader of the three militant individuals who had Juliet and Sawyer captured was Charlotte's father. His mannerisms and intensity seem strikingly similar to me, personally...
• Definitely a stretch, but what if Claire's warning to Kate ("Don't you dare bring him back") was not in reference to bringing Aaron back to the Island but instead Locke?
• Not a shocker: I doubt that Daniel's mom, who Daniel told Desmond he must go and see at Oxford, is Ms. Hawking, as the co-producers obviously want the Lost viewers to think.
• Now, it's a possibility that Sun has hidden desires beyond just wanting to kill Ben, but wouldn't it be awesome if Locke came and visited Sun as Jeremy Bentham prior to her first conversation with Charles Widmore and told her how Ben killed Keamy and that his indiscretion was the reason for the deaths of the Losties' on the freighter at the time of the explosion, including Jin, and that this is her reason for wanting to kill Ben (the "common interest" which she lists to Widmore).
• Sun and Widmore's conversation in the airport obviously continued past the point which we were allowed to view. What if Widmore told Sun that he rescued certain individuals from the Kahana disaster and that her husband was one of them and that he would allow her to be with him again, or at least see and talk to him, if she did some espionage work for him regarding Ben and his plan to get back to the Island? In other words, what if Sun just goes along with Ben's plan for now and screws him over later = sweet.
  

(Please be aware that I do not take full, personal credit for all of these different theories but have either adopted them, expanded upon them, or, to my knowledge, come up with them but in all cases merely find them intriguing and very plausible.)