I've see as of April 7, 2017 that Magento is rolling out a B2B Cloud for the Enterprise edition. I wonder if this is being considered, or some iteration, for the Community edition? I think this would be a great addition.
on the conference, they mentioned a new version Magento 2.2 (to be released soon) will have B2B module built-in but did not mention if it includes only enterprise and enterprise cloud or community 2.2 will get it as well. Hopefully, it will because there is no a better way to work out all the bugs in a new module then releasing it into the wild for people to play with.
I'm hoping to see a Business Intelligence module in CE as well - looks like an awesome module for smaller merchants who can not afford EE.