I don't have any information regarding this meeting. Right now they are working on some technical aspects of the agreement. The delegations are going to talk about all these different aspects.
I'm sure that in the last few months it's going to be very easy for the four to agree on all matters because the policies are more or less the same, and the goals are the same.
When you negotiate, sometimes you have to request more or less time. In any case, I hope they are going to achieve a very good agreement before the summit in Cali, Colombia.