Okay so I posted about Mikhail immediately after watching the show and have been thinking about it. There is no other solution except that its a really odd coincidence.
The timelines will merge IMO, and Mikhail will get back to the island in time to kill Charlie. I need to rewatch the episode where Mikhail is talking to Rousseau. What the heck is going on? Help me, Obi Wan-Lost forum.
Mikhail!!!! I knew we'd see that Russian bastard. We see him get shot in the eye, do you all think that he came to the island after that? That would mean the sideways reality and the current reality will be intertwined somehow...now I'm confused, and I can usually wrap my head around this show.
Well, what exactly happens when you die? If he died and THEN showed up on the Island, it would lend to Richards original theory that they were all dead. Unless death in one reality leads you to jump to the other.
Okay, you may have no clue (your words), but at least this is another possibility. Good work.
I really hope that it doesn't turn out that they're all dead and this is purgatory/in between. That would be a bummer for me, but definitely a possibility.
When you watch this show over, and you see the first scenes of Des in the hatch and Des meeting Jack in the auditorium while he's training, you will realize that this was in the works all along. The 'other life' is not the island, as we thought, its literally another life; the mirror world. Think of the scene where Des popped up in the airplane next to Jack and then disappeared. What did he say?
This is going to get spoiler-ific if I get more specific. Everyone has been saying that the simple explanations are always correct (as was the case with Black Rock and statue, etc.). All the clues are laid out there for us.
How Jacob and MiB fit in to this exactly is the big question.