According to sources at Droid Life, Verizon is planning to brand their new LTE network — which incorporates band 4 LTE on AWS — as XLTE and will tell us everything there is to tell on May 19. Verizon has been actively expanding their AWS footprint for a while, and will use the new spectrum to provide better service in 50 new markets in 2014. If anyone understands spectrum crunch, it's Verizon (and their customers) who has seen speeds and quality of service degrade in many metro areas as of late.
While some phones will work with the new network, specifically the HTC One M8 and Samsung Galaxy S5, many customers will need new equipment to take advantage of any new XLTE network that gets built out. We're not exactly sure how all of this will play out, but we're very interested to see what Verizon has to tell us come next Monday.
Source: Droid Life