I spoke to a sales person at Le Peterson who said the building plans have been scaled down from 34 to 31 floors.
Also, this image, posted at
MTLURB, of a new rendering seems to confirm that new height.
Previous renderings had Le Peterson and The Hilton Garden Inn / Le 400 at nearly the same height. Now, Le Peterson is notably shorter.
PS - I was also told by the sales person that the bottom 10 floors, with the white cladding exterior, would be double-height lofts.