Might have to go with my existing phone for now; wait another year for the 6S!
With the bendable, bare antenna, 1GB RAM and now no band 12; the situation seem to be forcing me into waiting mode.... again! Crazy! Might have to pretend I have a contract still and have a year to go! Silly!
There is a chance that Apple will fix the band 12 in the "unlocked" model coming at the end of November! I just going to wait till then and see what takes place.