I asked a similar question when I was waiting for Nougat on my s7 edge.
The answer is to keep checking the software update section on the phones settings as Samsung do not give out timeframes and neither do the mobile phone networks when they are testing the firmware before letting Samsung push it out to the networks branded handsets.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb.
Samsung Gear s³ Frontier Watch.
Samsung Galaxy Watch⁴ Classic.
The advice I offer is my own and does not represent Samsung’s position.
I have no affiliation with Samsung.
