What will be the premise of this Seasons Lost?

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There had been a lot of different suprises and twist in the past season of lost. But this season we know that they have been rescued, but we havent actually seen the rescue take place. Also the season ended with Kate and Jack talking about attending someones funeral. Who's funeral could it be? I can't imagine them having enough story left to have a full complete season, unless they start showing thier lives after they've been rescued. Will they say who/what Jacob is or will they introduce any new island inhabitants. Will Sun's baby be okay and will it survive birth? And why oh why does Mikail never die. You know the one with the eyepatch. Hes been electrucuted, harpooned in the heart and had a grenade blow up pretty close to him. Help me too answer or predict some of these questions please. Because I find myself very lost in LOST.