I had more than a brief look at (but less than deep study of) A Brief Look at C++0x, by Bjarne Stroustrup from January 2, 2006. I hope I would not have to deal with this monstrosity in future software development projects.
I prefer to deal with advanced concepts the FORTH way. Like LISP or SCHEME, have a way to roll your own programming constructs. On the other hand, have a seamless way to integrate with low-level programming languages such as C or assembly language.
Python, alas, still misses a way to embed a function written in C in a Python script to compile it on the fly and run it together with the rest of the script, to support low-level operations in an efficient way. FORTH, on the other hand, supports embedding assembly language in FORTH source code.
Instead of piling all levels of abstract concepts on a single language and run the risk of making its abstractions leak (see: The Law of Leaky Abstractions) and making whatever is going under its hood overly complicated and difficult to understand and debug, how about making different languages support different levels of abstractions yet seamlessly interoperate, like existing assembly language integrations into FORTH and C?