FYI, Neptune was not awarded one of the NextGen tanker contracts. They were awarded a "legacy" contract for one BAe-146 and six P2V's. That contract only lasts for up to 5 years, or until sufficient numbers of NextGen tankers have been fielded. Unless they protest the award (and win), they may not be in the firefighting business for much longer.
USFS announces contracts for next-generation air tankers