Future plans for JScript Native

What are Microsoft's plans for JScript Native in the future?

Recent versions of Mozilla Firefox have made available several important enhancements to JavaScript, such as E4X, array extras, array and string generics, generators, iterators, array comprehensions, block scoping and expression closures. These are described at the following pages:

http://developer.mozilla.org/en/docs/New_in_JavaScript_1.6

http://developer.mozilla.org/en/docs/New_in_JavaScript_1.7

http://developer.mozilla.org/en/docs/New_in_JavaScript_1.8

Is Microsoft planning to support these features in JScript Native in the near future? When can such support be expected?

[1100 byte] By [KobyKahane] at [2008-1-10]