If you are selected under EE and are far enough along in the process that you qualify for a BOWP - then you will be able to extend your work permit that way.
Otherwise your employer will need to obtain an approved LMIA.
But I think Open work permit is granted to only those who have got an ITA, if my work visa expires before I get ITA, then I'm not eligible for OWP, correct me if im wrong. I had also applied for AINP under EDS international grads category in Feb2014, no response yet