Would it be possible to use the discovered vulnerabilities (CVE-2016-0819 and CVE-2016-0805) to root a phone permanently without any dataloss and install applications like SuperSU?
There will propably establish a praxis like:
Downgrade to vulnerable Software ->
Execute Exploit / Run Code as root ->
Install / Upgrade Software to save level
There is a post in the xda-developers board adressing this technique.