I think MDG is heavily focused on galaxy at the moment. I took up the task of moving towards cordova 5 as much as possible and slava finished it and merged it into devel. This should be part of the next release, but there isn’t a timeline set for the release that I know of.
Nothing stops you from install cordova 5 -g
after creating project via meteor run ios-device --mobile-server …
and then cordova platform update ios/android
I’m working on improvements to the Cordova integration, including an upgrade to the latest versions, that I hope to get into Meteor 1.2 (which will be released later this Summer).