Dudes there are many reasons for the delay...as many stated Toyota is still busy with marketing the GR Yaris, maybe they wanted Subaru to have a little more spotlight, Toyota just doesn't really care for a car that is barely a blip on their stockholders' radars, etc...
And remember this leak from a while ago? Hybrid only Sienna and Venza were just launched and the 86 is up next this summer..