State of std.container redesign

[David Nadlinger]

If I remember correctly, Andrei proposed a redesign of std.container 
here on digitalmars.D not too long ago, which included switching to 
final classes for container types.

However, I can't quite remember the outcome of the discussion, and there 
don't seem to be any related changes by now. Is this idea simply pending 
implementation, or did you change your mind on this, Andrei?

David