Looks like PR stunt to me. Going from 1.9B to 3B (I wouldn't pay too much heed to that > greater symbol ) requires a 33% increase.
Since last qrt-qrt growth is 21%, a 33% rate is not out of reach.
It is within the possible realm.
However, in the world of corporate speak and hand waving, what if they don't make it but are close. Is mr Mkt going to really nail them for it? Would the analysts never trust any forward guidance from Abbvie again ? I'd doubt it. So if I were Abbvie CEO , I would do exactly what he does , leaves the guidance intact, knowing there is none to light penalty for being wrong.