Much as I'd like to see one, I sort of feel an "OLYMPUS" book would limit and cover a lot of the same ground that the current Wonder Woman run is covering. Still, I DO think it would be a lot of fun.
Wonder Woman: Exactly as is.
Sensational Wonder Woman: This would focus more on superhero Wonder Woman. Someone said it best -- a return to Rucka's run, essentially. Scott Snyder has shown interest, Fialkov writes brilliant strong women and intrigue, but of course bringing Rucka back would be idea,.
Wonder Woman, Princess of Themiscyra: Ben Caldwell writes and draws. An all ages book, out of continuity, that tells wonderful and beautiful tales of the young Princess Diana growing up on the island, sneaking out to Man's world, etc.
Strife: I'd structure this book as they once structured Phantom Stranger, or as Gaiman did Sandman. In fact, this would have a lot in common with Gaiman's Sandman, even more in common with Gillen's Journey Into Mystery. It wouldn't be centered around the character of Strife per se...she would largely be a mechanism to explore others, as Sandman tended to. All the different ways Strife manifests in a life. Her character arc would be something that occurred in the background, as she gains dimension. No one better than Gillen to take this book, but I'd take Paul Cornell as well. Have this one deal with individuals, have this one deal with OTHER mythologies, new myths cropping up.