What is a standard and what is a capability?
Sorry, but you clearly missed the point that 2G, 3G, 4G, 5G are capabilities, and Standards (GDM, CDMA, EDGE, LTE) are the how.
There has been too much media misuse of the G term, giving the impression it is a standard. Apple has been a huge marketing leader of this misuse, but journalists have followed the bandwagon so much so that all the manufacturers are caught in the same loop.
3G telecommunication networks support services that provide an information transfer rate of at least 200 kbit/s. 4G service must have 100 megabits per second (Mbit/s) for high mobility communication (such as from trains and cars) and 1 gigabit per second (Gbit/s) for low mobility communication (such as pedestrians and stationary users).
Nothing in 3G or 4G mandates the protocol, frequency, or any other parameter to deliver the capability.
So there WILL be a 5G (capability). Now, is Samsung's tech going to meet that? That cannot be said at this time, since clearly no standards exist.