If anyone follows both of them on twitter, they would have known that Pierre was in the U.S. when Viola was trying to work with Greg Lansky. Pierre an Greg are good friends and he recommended him to Viola. He (PW) was surely not going to pass up an opportunity like this one to visit Viola in LA.
Pierre mentioned that Viola just did not feel well and did not settle in the U.S. and missed Latvia. Perhaps her BF (Ray Boss) still has something, if not everything to do with her, and her career decisions.
I think Pierre and Viola had or still have standing contract for an 'x' number of shoots. Regardless if this was an old shoot from when she was in Paris in October or November 2014, we will all find out on 1 July.