why is Mike referred to as a henchman? characters have names. if you don't know it, look it up.
as to sunday's show. very interesting episode. Clearly Gus just got a lot more powerful(with less competition) and Walt is a lot more paranoid, as he should be. I think Merkert was definitely the man who called Hank, but will this even come up? Hank might die or barely remember it.
I do not think Gus had Juan Bolsa killed. Likely the 'Federales' or a sect of the US military.
What's next? Jesse seems to be the next peice to fall. Maybe he starts using or has some personal conflict. Gus is clearly sold on Walt, but not Jesse. I can see Jesse having some kind of a breakdown and Gus coming down on Jesse and perhaps Walt as collateral damage. Does Walt have any leverage on Gus? no, but maybe he'll try to gain some.
I think Hank does recover and reclaims his job and mission to sniff out Heisenberg. I think the new high level of production will only serve to make this mission have more backing by the DEA. In short, the DEA will be on the offensive.