D 2015/2016 Vision?

[bitwise via Digitalmars-d]

http://wiki.dlang.org/Vision/2015H1

Looking at this, It's obvious that some of it has spilled over, 
but it would be nice to have a fresh document detailing the plan 
moving forward.

I'm hoping to see something about D's memory model. In 
particular, an update on DIP74.

There are several things in phobos that are classes. This goes 
against the nogc goal, so what's the plan?

Currently, it seems like someone will eventually take all these 
classes/hierarchies and flatten them into some struct/template 
approach. I am not looking forward to this at all. I like 
polymorphism when it's appropriate.

For example, streams. I like to be able to do things like this:

Stream s1 = new MemoryStream();
Stream s2 = new File("..");
BinaryReader br;
br = new BinaryReader(s1);
br = new BinaryReader(s2);

But, given D's current nogc goal, it seems they must all be 
eliminated...unless DIP74 swoops in to save the day.

     Bit