@Poiriers, no it will not be the same as MEC 2012, although of course some of the same info will be presented. But newer and more up-to-date info will also be presented. And there will be a big announcement made at the end of the session, as well. So you will want to be there for that.
In terms of latency requirements, the only support statements we have around those is for DAG members, and that is that all members of a DAG must have no greater than 500 ms round trip return latency between them, regardless of physical location. That applies to both Exchange 2010 and Exchange 2013 DAGs. See https://technet.microsoft.com/en-us/library/dd638104(v=exchg.150).aspx#NR for the full statement for Exchange 2013.