Rosamund Pike is the "Gone Girl" and Reese Witherspoon goes "Wild"

Reese Witherspoon to star in WILD

News broke today that Reese Witherspoon has been cast in the film version of Cheryl Strayed's memoir Wild. She'll play the author, an inexperienced hiker who tackled the west coasts' 1,000 mile Pacific Trail solo after her mother died and her relationship floundered. If there was even the slimmest remaining chance of Witherspoon playing Amy in Gone Girl, it's gone now. Her company, Pacific Standard, will still produce.

Rosamund Pike for Amy in Gone Girl?

In a wild coincidence the  Hollywood Reporter also announced today that Gone Girl director David Fincher has narrowed down his choice of actors for the pivotal part of Amy to Rosamund Pike. She wasn't even on the shortlist I posted Tuesday but that makes sense; so little is straightforward or clear in this industry town. And maybe he saw early footage from Hector and the Search for Happiness, the screen adaptation Pike just wrapped. According to the article Charlize Theron, Natalie Portman and Emily Blunt are all gone gone gone, with the never-before mentioned Pike being Fincher's top pick. The director has picked out his couple of the year: Ben Affleck for Nick, Rosamund Pike for Amy in the film version of Gone Girl. I'm assuming author Gillian Flynn is onboard as she and Fincher are adapting the script together. Will Pike and Affleck sign on? And if so, what do you think of Fincher's casting choices? 
Sounds like it will all boil down to the money; the budget is still being finalized. 
Both projects are expected to get started in the fall.