Java 8 was released in March 2014 and is therefore not used by the Java EE 7 specifications which were released in 2013. This will change with Java EE 8 and this means that CDI 2.0 can also make use of the new features.

The discussions about the influence of the new Java features on CDI are still in an early state, but there are several JEPs that seem to be applicable to improve the specification. Some of them, like the CompletionStage API and repeating annotations, are already used in the proposals for asynchronous events and repeatable interceptor bindings. But the usage of the new Java 8 features will not be limited to the new CDI features, there will also be talks on how to improve the existing parts of the specification.

The current ideas can be found in this document.