No shortage of FO's on the 767, as a matter of fact they are all scheduled to retire by Nov. this year. The numbers on the Narrow body however, are pretty dynamic, and i highly doubt if the E jet shortage on the right side is only 12. The E jet and 737 are currently feeding the 787 and 777 with FO's, as the senior FO's on the 767 and 777 transition to the narrow body for command. so naturally the numbers have to be replenished.
An educated guess from my side would be a requirement of about 70 new FO's on the narrow body this year. Six 787 being delivered this year and being crewed almost entirely from the 737, and two more 77W also to arrive this year, plus about 15 FO's upgrading to the left side from the 777. Normal crew requirements as per the company is about 8 FO's per aircraft, and we are looking at 8 new Aircrafts this year on the higher fleet plus a couple of upgrades.
Point to note though, this requirements will be met by both AB initio cadets and direct entry pilots.
All the best to everyone going through the interviews at present.