Oracle recently announced a JSR for MVC 1.0. JSR 371 was motivated by results of a Java EE 8 Survey, covered by InfoQ in March of this year. 61% of those surveyed supported the idea of providing support for an action-based MVC framework, alongside JSF. Only 26% felt there was an existing framework that could do the job, and 42% of those mentioned Spring MVC.
JSR-353, the Java API for JSON Processing (JSON-P), has reached final approval ballot this month. JSON-P (similar to JAXP) consists of a Streaming API (similar to StAX) and an Object Model API (similar to DOM). Please note that this API does not include JSON data binding (similar to JAXB), and is unrelated to the more popular JSONP or "JSON with padding".