What awaits Ned?

Curious what you all think is waiting for Ned at the top of the Tower of Joy? The book memories of Ned are almost non-existant, except the promise, Lyanna, blood, and the blue winter roses. From the fight outside the tower, Ser Gerold Hightower was missing. Will he be upstairs with Lyanna?

Also will there be another woman there helping Lyanna? It's speculated that she gave birth, explaining the bed of blood Ned finds her in, who do you think that is? Popular choices from the books are Wylla (Jon's nurse), Ashara Dayne, Gerold Dayne, or someone else entirely?

And finally, what do you think the promise Ned made to Lyanna was exactly?