Hiring at the regional level requires one of 3 things to happen...
1) Industry movement. Its not happening anywhere else, is it happening at Pinnacle?
2) Growth. Not aware of Pinnacle getting any more flying. Where are you in comparison to your highest flying level since hiring stopped?
3) Changes in manning requirements. New rest rules might do this, new contract might do this, etc, but I don't think anything like this has happened to Pinnacle.
Then again, in the low times for the industry, its usually only the bottom feeders that are hiring. So if anyone starts, I wouldn't be surprised if Pinnacle was one of them.