Nonsense! There is no 5G. There isn't even an agreement between the various parties as to what 5G will be.
In fact, we don't have 4G anywhere around the world yet. LTE is not 4G. Several years ago, when 4G fell well behind schedule, carriers and manufacturers lobbied the 4G working committee to allow them to call LTE 4G. After 6 months, the committee agreed. But LTE is actually 3G+. 4G is LTE Advanced, which has been in testing stage for several years, and is something we won't see for another year, at least, in commercial installation.
Estimates for the release of 5G, is mid 2020s, with some in the industry thinking early 2030s.
So,what AT&T and Verizon, who also announced this, are likely talking about is LTE Advanced, in other words, real 4G.
Don't let anyone fool you guys about this. No one even knows what 5G will be. Some groups want it to be equivalent to 10G Ethernet. Some want it to be a mesh technology, and others want it to be LoT. There is No agreement as to what it will be, much less having equipment capable of delivering anything.
You might be true about the LTE-A, 4G and 5G marketing in part, because it is also true that its a common practice to change standards before launch because of roadmaps and Time to Market. But other than that, you are focusing in the less important part of the news, the important part is not about the names but about the technologies being deployed. First, LTE-A was STANDARDIZED in March 2011 as 3GPP Release 10, which is already old. A complete coverage of commercial LTE-Advanced deployments (Cat.4 with CA and Cat.6 onwards) including launch dates since 2013 can be found in
https://en.wikipedia.org/wiki/List_of_LTE_networks
Just for reference, LTE-A networks there are 3 in Africa (Cat 6) and 6 in Canada (Cat 6) commercially deployed, and in the US there are some Cat 4 with CA which is also LTE-A: ATT has 2 networks running CA since 2014, Sprint has one since 2013, Tmobile has one since 2014, and Verizon has 2 since 2014. Australia has Cat 11 already (600mbps). Also, Central America and Caribbean countries have a couple more Cat 6 networks I have implemented myself and are not listed in the document. I don't know what is ATT and V planning to test, but they have already had LTE-A in a couple of places for 2 years now.
So, as you can see, LTE-A is not new and I cannot be sure what these guys are going to test, but IMHO I can only hope it is at least Cat 11 which is already commercially deployed. Also, the fact that they have LTE-A or 5G or whatever doesn't immediately translates to higher speeds, that depends on their commercial departments and the Fair Use Policy they want to implement (normally called Cap in the US, both for max speed and for total monthly download, also applied separately for different apps). What it really means is that more people will be able to have and sustain that use policy because it is impossible for any carrier to be sure how many people are going to TRY to connect to one cell (mobility is a bi@tch), also you will have lower latency which, even if it is already low, it is always good to improve for streaming voice or video (online games included), CA will allow you to connect even to separate cells/base stations and load balance, the rest are pretty much improvements for the carrier M&O.
Oh, I worked for a mainstream LTE network equipment manufacturer so believe me, LTE-A is already old (implementation has taken time to carriers but that doesn't mean it hasn't been around for quite a long time) and what you call real 5G has been in testing since 2010. If you go to any of the Telecom expos around the world, you might see the tests running live with several manufacturers. Start talking about 6G, that is a less than a year talk.