Well, one thing we DO know is that Lalo kicks the bucket in the underground construction site. That became clear when Gus hid the gun on the tread of the heavy equipment (the deliberate way in which he did it wasn't for nothing)
At this point, it's 50/50 whether or not Kim take a bullet down there, or if she, shaken by Howard's death, decides this isn't for her and just drops out.
People seem to think that Kim was living in the lavish house that was being packed up at the beginning of season 6. I didn't see much evidence of that. I think that:
Kim dies in the construction site.
or
Kim, who is snapped back into reality by Howard's death, uses some of the Sandpiper money to re-locate via the vacuum cleaner salesman (Jimmy, motivated to get Kim out of there and give her a fresh start, seeks out a person of that ilk, and that is how/why he found him in the first place)
Option 2 seems much more likely to me.
She's from Nebraska, and I think she goes back there, and why jimmy ultimately decides that is the place for him, when HE has to go on the lam.