This is a very encouraging direction for them to take, as far as I am concerned. It would let them have room for larger batteries and still allow us to have large immersive displays. I don't know that I want to continue on with Apple if face ID is the only biometric option they intend to offer going forward.
Now that this fingerprint technology is a possibility and Samsung may be pursuing it, I could be coming to a parting of ways with iPhone.
I don't know that I would get a Note 9, though, given that I am quite pleased with my S9+ and would prefer to hold onto all of my current phones for two years, this time. I guess the wild card would be if I find my use constrained by the relatively mediocre battery life I'm getting so far. Quick charge mitigates that very well, though. At any rate, I love to read about these phones, so it's still exciting to see this rumor pop up.