Will D ever get optional named parameters?

[John Colvin via Digitalmars-d]

On Monday, 13 October 2014 at 08:48:11 UTC, Walter Bright wrote:
> On 10/13/2014 1:29 AM, "岩倉 澪" wrote:
>> Are there good reasons not to add something like this to the 
>> language, or is it
>> simply a matter of doing the work? Has it been discussed much?
>
> Named parameters interact badly with overloading.

How so? Can't the overload just be calculated on the subset of 
arguments that are given?