just read the second article it says;
"The 3.5-liter EcoBoost V6 from the Taurus SHO might also find its way into the Mustang, eventually replacing the base model V6. This is unlikely to happen in the first few model years, but may happen during a mid-life refresh."
the 2.7 ecoboost mustang makes less gas milage than the current v6 model... i'm all for the 3.5L but wouldn't the 3.5L TT motor defeat the purpose of the v6 model? Just the gain 60hp more... They may as well go with the v8 and will get the same milage with more power.