Regarding Market place and plugins

I’m might be planning on starting to create plugins for The Unreal engine, mostly focused on Plugins for mobile. But my question is this, what are the plans for integration of other API’s directly into the engine such as Chartboost, admob and other ad networks and functionality such as iOS game center, Google Play game services etc? If there are plans for you to integrate such into the engine there wont be much need for my plugins/services.