Sorry, but it's not possible.
I would like to know from ORACLE if they have a release time frame for a weblogic version that does support JEE7 (JSF2.2, EJB 3.1, etc.)
2.1 is the latest JSF version supported by recent
WLS 12.1.3 product release.
EJB 3.1 is supported in all 12.x release of WLS
Please check the below doc
Hope this helps!!