The intertwining of Jimmy & Mike is great and part of me wants to see continued scenes of each of their exploits before they make it to Breaking Bad territory.
I believe you are correct that nearly all, if not all of next weeks episode will be Mike/Gus/Hector centric. On here I imagine the progression will be Mike joining Gus' employ, eventually becoming his chief if staff, Hector's stroke (I'm guessing this will be another brilliant Mike maneuver) and Tuco returning, taking charge of Hector's business. This can easily be another two seasons or more by itself.