This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 110b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
[Voted into WP at March, 2010 meeting.]
The current wording of 9.4.2 [dcl.init.aggr] paragraph 1 does not consider brace-or-equal-initializers on members as affecting whether a class type is an aggregate or not. Because in-class member initializers are essentially syntactic sugar for mem-initializers, and the presence of a user-provided constructor disqualifies a class from being an aggregate, presumably the same should hold true of member initializers.
Proposed resolution (November, 2009):
Change 9.4.2 [dcl.init.aggr] paragraph 1 as follows:
An aggregate is an array or a class (Clause 11 [class]) with no user-provided constructors (11.4.5 [class.ctor]), no private or protected non-static data members (11.8 [class.access]), no base classes (11.7 [class.derived]), and no virtual functions (11.7.3 [class.virtual]).