We can't talk about this in detail yet but http://blog.jospoortvliet.com/2016/06/nextcloud-is-replacing... has some more information on what's upcoming. If you can understand German a very good in-depth research article is at http://www.golem.de/news/community-fork-und-neues-unternehme...
Disclaimer: I am one of those folks that left ownCloud for Nextcloud.