That is the plan. There has been no time frame given, but yes, it is my understanding that we will go to a combined 767, 7ER category. I am sure that ATL will be the last 767 category standing.
Two years ago it was said that they were slowly moving toward a single group and that it would take about three years. Well, it appears that they have made that decision. Wait and see what they actually commit to on the Surplus Award that will be out in two to three weeks.
IMHO you will see a lot of 767 slots go away, and some ER slots, but the majority of it will be domestic. Look at the ER bid package. Since when have the been flying that much domestic time in the summer. The evidence is right before your eyes.
Also from a cost perspective, it is easier to displace 767 pilots than ER pilots.