We did the first part and very recently put http://www.sml-family.org/ online and announced the opening of the definition (whew!).
I'm primarily concerned with the parallelism and concurrency-related features, which we're trying to first clean up a bit more in the context of Manticore before trying to do something like proposing standardization for those features.
Also (IMO) you should take those slides more as a research direction for years of research investigating alternatives that eventually get standardized, not a 2015 implementation plan :-) Each of those topics casually mentions non-trivial extensions to problems that already have each had researcher-decades of investigation.