Since this question just came up on python-ideas again, here's a summary of the current status:

1. The current patch is known to be outdated due to the inclusion of PEP 380 in Python 3.3 ("yield from itr" eliminates any need for "yield *itr")

2. Since this is a syntax change, a PEP is needed to elaborate on the exact details of what will be added (see PEP 3132 as an example of a PEP that covered a similar change for assignment *targets*)