According to folks over at TechFokus, Asus will launch its Asus Transformer Pad TF300TL with LTE. The countries it will first port to are Germany and Austria by Mid of this month. Transformer Pad TF300TL will cost  €629  with keyboard dock and €529 without it.
Earlier TF300TL was spotted in FCC database in May. After testing FCC reported that the device operates in the 700MHz and 1700MHz LTE bands as well as the 850MHz and 1900MHz HSPA+ bands. The colour scheme for TF300TL is same red, white, and blue to the non LTE variant. In Germany and Austria it would be available from O2.
Currently we have no information regarding its availability outside of these two countries. But we are hoping that Asus will soon make it available to other countries also.