There have been a lot of ideas bouncing around about what is going to happen, and unless something has changed recently, I do not think a final decision has been made.
I think it's important to understand the context, so let me fill you in:
DO graduates have been able to apply to DO and MD residencies for many decades now, but MD graduates have never been able to apply to DO residencies. This creates an artificial advantage for graduating DO in terms of number of residency slots you can apply for, and as this is a zero sum game, less spots for MD graduates. Therefore, and I think understandably so, the ACGME (MD residency dudes and dudettes) has been trying to come to some agreement with the AOA and the AACOM (DO residency dudes and dudettes) to make it so the DO schools don't get to have their cake and eat it too at the expense of their MD counterparts.
In the end, this can only benefit the MDs or remain unchanged, and I think they have the most power here with the most residency spots by far as their leverage.
However, a simple google search reveals
http://pressreleases.kcstar.com/release/messages/31319/ ...
I think someone else might be able to give you a more definitive answer if anything has indeed recently happened, but I think that's a fair summation of the process that's been going on so far.