Until you receive your ecopr, she is good to travel with her TRV as a worker. Not sure, What happens to her Visa status after you receive ecopr. I have submitted a query for travel exemption explaining my situation. You can also do it after you get your ecopr. https://secure.cic.gc.ca/ClientContact/en/Crisisi am very similar situation/dilemma. my wife's SOWP was approved and within two days i received login credentials.
she has submitted her passport for TRV. i am not sure whether she will be able to travel with TRV for a SOWP if i receive me e-copr.