I see no way Lalo survives the end of BCS. Nacho *might* survive but Lalo has to know he let those guys in to his compound. I think Saul/Jimmy is never is told what happens to Lalo and Nacho at the end of BCS. Mike is tight lipped and Gus Fring owes nothing to Jimmy. So in BB when Saul freaks out he thinks the events are finally catching up to him, not knowing those players are all dead. I honestly think Jimmy and Fring never meet.. I can't recall a time they do in either series, why would they meet in BCS. Saul might work for Fring later on, but he goes through Mike, or maybe even Tyrus. If Kim survives, and doesn't blow up her life ruining Howard, or run away with Saul's money, I still think Kim might land the Los Pollos Hermanos retainer, become Fring's official lawyer, and do pro bono on the side which will even help with Fring's public image. Saul/Jimmy is a known shyster, and has started building up a reputation, so keeping him at arms length and be the "criminal lawyer" is a good position for him. There's no reason for him to ever meet Fring.