No alignment shifts...even if Calenthang does decide to get a bit more steel in his mannerisms, LN is a pretty flexible means to do so. You do what it takes to make sure order is kept, if it means helping the orphans, you do it, if it means letting the thieves' guild kick out Mother Hubbard so they agree to keep their turf from expanding more, you bring her some boxes and wish her well.
So, I think we aren't in any danger of a shift, if there is one to worry about..