My possible conclusions for Better Call Saul...
Preface: Kim leaves the tequila bottle topper in a place for Jimmy to discover, in advance of any of the following:

1. Gene (Jimmy/Saul) who has relocated to Nebraska, runs into Kim, who is from Nebraska. The show would end on their chance encounter without a word or
2. Kim just disappears or
3. Kim dies
How will Better Call Saul...end?