As you may know Boeing will open a new office in Madrid, Spain. I think they want to have a stake on the new Iberia´s fleet.
I think Iberia will keep retiring their 727, MD80 and other Boeing aircraft and replace them with Airbus.
I think eventually Iberia´s fleet will be the following :
727 & MD80 A319&320
But I think that other spanish carriers like Spanair and Air Europa will start buying Boeing 777 and 737.
Boeing is also opening and office in Mexico City I think that Aeromexico will became an all Boeing fleet and Mexicana will go for Airbus.