Right. There was speculation that SNC would switch over to Orbitec abort motors after they acquired the company in 2014. Propane-NOx IIRC. But then they lost the crew contract, and cargo DC was spec'd without them.
Orbitec are reportedly providing the thrusters for cargo DC, so it's possible they could develop large motors for abort at some point.
Side note: info on the cargo DC thrusters is still surprisingly hard to find, i.e. which propellants will be used, spark ignition? Anyone heard anything of late?