On Tuesday, April 28th (the day after the Travel Papers arrived...) the Call came! We contacted as many people in our neighborhood we could at such last minute. They came over and Hayley GooglePlussed her family. Everyone in CA and a couple of BYU-I friends also got to watch her make the announcement.
She's going to the Paraguay, Asunción Mission!
She will go to the Argentina, Buenos Aires MTC (or CCM as they call it there).
Hopefully the Visa will work out for her to go there, otherwise she might have to go to the Provo MTC. Crossing our fingers she goes to Argentina.