Not sure how AoC really works, (ever did TLP) but it sounds like a bunch of old content which was relegated to "I have to find it up to kill it" has been possibly turned into "I can choose to kill it"
Do we still need to do the flagging requirements in order to use some of these AoC's on live? For example, the Theater of Blood and Relic AoC requires you to have the Twisted Harmonic Chime in order to get the instance.
I would assume that all requirements needed to zone in would still be there. If you can zone into the static zone you can do the AoC.