No, but there will be enough sell-off lift available to cover the trips. EJM, TMC and other 3rd parties, and don't forget Options/Flex fly charter through KR's broker company. And you can't count on the Options/Flex pilots spiking the trips - they won't even know these are NJ owners they're flying. It'll just say Mr & Mrs Smith or XYZ Corp on the manifest. NJ's not the operator in the case of a sell-off, they just act as a charter broker, to the crew never need know where it came from. And you can be sure the pax will be briefed not to reveal it, either, if they don't want a departure time break.
So in the event of a strike, a Frax pilot union has even less leverage than an airline union. At least with an airline, lost trips = 100% lost revenue. With a Frax, monthly management fees are still coming in, the company just loses the hourly trip charges. That'll still be an expensive proposition for NJ, but if they're determined to break a strike and Hansell has WB convinced that it's a cost saver long-term, they'll probably be willing to burn cash for a while. As already stated, could get real ugly, real fast.