D3 together with Phobos v2

[IGotD-]

The work on Phobos v2 has been initiated which is a good thing. 
However, shouldn't D3 be developed alongside withe Phobos v2?

With Phobos v2 we have an opportunity to review what is needed in 
the D language and adjust accordingly. Right now we have a DIP 
process which has a high inertia by design. While this is good 
for a stable language, for new development we need a more 
disruptive platform in order investigate what works/what is 
useful with the D language. Where the maintainers/developers can 
play and investigate new ideas without the fear of destroying for 
the developers working with D2. Basically a long term testing 
ground.

It's really an opportunity we should take advantage of.