Will Lost end with the gang going back to happier, pre-island times?

Featured here in the latest installment of TVGuide.com's Getting Lost video series:

• I start off with a reminder about some Very good news (with a capital V).

• Leaping ahead in time a bit — as a Lostie is prone to do — I had to wonder: Are the producers locked into what the series' final scene will be, when Lost signs off in May 2010? Carlton Cuse gives me an update.

• Who is the "they" Jacob warned Un-Locke about? I share your top two theories.

• Similarly, this week's Burning Question tackles another case of uncertain identity. Give it a listen, then send your best theory to Getting_Lost@tvguide.com.