Craig Monroe will make the 25-man roster. To clear room for him, Romulo! has been designated for assignment. Unless there are further moves, the team is basically set, except that one of Evan Meek, Craig Hansen, Sean Burnett, Jesse Chavez and Donnie Veal will not make the team. Meek, who has bronchitis, could be placed on the DL. In any case, Hansen, Burnett and Veal can't be sent to the minors without the Pirates risking losing them, so my guess is that they're in. As WTM suggests below, four of these five plus Matt Capps, Tyler Yates and John Grabow could be a catastrophically awful bullpen if further moves aren't made.
As for Monroe, I'd still like to see the Pirates make some kind of move to replace him; he's been declining for years and was never very good to begin with.