I don't believe EPCOT security is moving at this time. Currently you have to be screened before boarding the monorail, which means guests coming from EPCOT to TTC have been screened already. The current setup is that the exit for the monorail station at EPCOT is on the other side of security meaning that guests got screened at their hotel or entering TTC to board the monorail will get screened again at EPCOT. the layout of the station makes it difficult to reroute those guests to enter without going through security a second time unless they push things WAY back. I think they're keeping it as it is for now.