I was checking in from a US airport (flight details limited as I'm trying to protect the helpful desk agent) and noticed my flight number had changed, which she said was from AC to AC Express and caused a hiccup in my checkin. I asked her about this odd and seemingly cosmetic, change. She hinted that while AC Express seems to have their own personnel, etc., like we are already familiar with, some bigger changes may be ahead (ok, I gently pushed). Basically, she thinks a spin-off like Aeroplan is in the air.

Anyone heard anything on this?