If they want the Womans match on the main card, it's probably going to be AJ vs Naomi, with all the other girls as lumberjacks. A multi-woman tag match where the title isn't on the line would make more sense as a pre-show match.
For the battle royale, if nowhere else on the card, you figure Rey and Sin Cara are in it. I'm also guessing there is a "special" slot right now, that could go to Jake Roberts or someone else gimmicky to get thrown out quickly but get a big pop. At this point, the obvious finish is Rusev eliminating Big Show for the win, which leads to a natural feud between the 2 of them.
I'm also really curious about how they handle the HHH vs Bryan match. In one sense, it makes sense for it to be really early in the card so that the winner can "rest up" for the second match. But this is HHH- he isn't going to be anywhere but one of the bigger slots of the night. My best guess at this point is that it ends up the semi main and goes 25ish minutes, with the title match starting immediately afterwards, so both Batista and Orton can get heat on beating up the injured Bryan after HHH hits him with a sledgehammer or something post-match. It also saves the crowd, as Bryan doesn't have to come out twice in the same night. With this, I'm guessing the main event is short- 10ish minutes, because Dave can't really go more than that and Bryan will have just wrestled a long match.
Otherwise, the placement of the show seems fairly easy. Battle Royal opens the show, Shield Match follows it, and then you alternate Cena-Wyatt and Taker Brock with the 2 filler matches (Usos and Divas) before your main events.
