Andrei Alexandrescu did a reddit IAMA recently (with Walter Bright contributing) and if you read through the posts I think you'll come away with the impression that D is very much here to stay (I certainly did anyway).
http://www.reddit.com/r/IAmA/comments/1nl9at/i_am_a_member_o...
There is more to a language than just the language itself, especially when you use it in a business setting.
But you made me curious now.