KalKal
Superstar
Even though that'll be too fairytale Hollywood happily ever after for this type of Breaking Bad universe, it also makes the most sense about the point of the flash forwards. Jimmy/Saul/Gene has no other emotional attachment to anyone else who maybe still alive. His con artist homie is dead from a heart attack, Chuck is dead, there's absolutely nobody else BUT Kim and if she is killed off, then what exactly is the point of the Gene scenes? We know he's been exposed... unless it's about him coming forward and accept his fate. Who knows?
It might not be "happily ever after", it might be more like "Jimmy comes out of hiding to save Kim, and gives up his life but feels redeemed as he dies".