This is just someones random posting, not a serious rumor, it's circled the internet a few times now.
While some of the lenses are real and known to be in the works 10-24DT (a tamron rebadge believed), 24-105G (been known for over 2 years now, but slow in coming out, much like the 24-70 and 70-400 were long known, and finally came)
It's been covered in other forums how some of these make no sense like the 18-270.
Someone by the looks of it just took random bits of info that has been out there for a while and just combined it into this. Some of these lenses will come someday, but not connected with this "source"