There's no question that there will be plenty of more layers to the multi-branched Marvel saga of films leading up to the remainder of the third and final phase of the MCU. In the meantime, we have at least one of those layers slated to peel back on May 6, 2016 for the release of Captain America: Civil War as the good guys and gals defenfing humanity turn on each other, adding to the threat level from all sides.
Captain America: Civil War plot picks up where Avengers: Age of Ultron left off, as Steve Rogers leads the new team of Avengers in their continued efforts to safeguard humanity. After another international incident involving the Avengers results in collateral damage, political pressure mounts to install a system of accountability and a governing body to determine when to enlist the services of the team. The new status quo fractures the Avengers while they try to protect the world from a new and nefarious villain.