This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 112e. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
A desire has been expressed for a mechanism to prevent explicitly specializing a given class template, in particular std::initializer_list and perhaps some others in the standard library. It is not clear whether simply adding a prohibition to the description of the templates in the library clauses would be sufficient or whether a core language mechanism is required.
Rationale (June, 2014):
This request for a new language feature should be considered by EWG before any action is taken.
The library clauses already prohibit user specializations of standard library templates. This is a request for new feature, which should be proposed in a paper to EWG.