but a whole new layer of BGS representing a new gameplay system the players can interact with has little to do with "narrative" to be frank.
It is entirely related to the new narrative - which is a direct continuation of the previous narrative (September 2020 - November 2022)
Compared to the old narrative this one seems to take fully advantage of the 4.0 engine/client capabilities, still i wouldnt call it an overhaul because it looks to me completely new
Not at last, they seem to be completely on time with their scheduling - last year they were on point with every update, which update released exactly as advertised (maybe except U11 which was delayed, but only a bit)
However, that does not exclude the fact that the KFO may not be ready to launch in U15 (although 5 months is a bit wider timeframe than the usual 3 months during the last year) and will release later on.
I guess we will see if U15 will include the KFO (IMO it will), however - not everyone will recognize it as a KFO

Only 2 months till April