Facebook supposedly working on enterprise-collaboration tool

The latest in the blog-o-sphere is that Facebook has been working under the radar, on a new product that is aimed to take on the likes of LinkedIn. The specifics aren't clear, as to whether the project will end up being an extension of Facebook Pages and Facebook Messenger, specifically for enterprise collaboration, or something more akin and encompassing, like LinkedIn, a complete social media platform for professionals.

The company is testing a new product designed specifically for use in the workplace, according to three people familiar with the matter, who spoke under condition of anonymity because they were not authorized to talk about the project. The product, which is called Facebook@Work, will allow users to collaborate on projects through group chats and document collaboration with co-workers, these people said.
— NY Times (NOVEMBER 17, 2014)

This of course comes on the heels of a resurgence in corporate collaboration tools, with startups like Slack coming to mind, raising over $120 million. Facebook have clearly seen an opportunity to move beyond being completely consumer-centric and draw legitimacy with enterprises.

Slack has  over 300 active teams.

Slack has over 300 active teams.

In my previous role, we used Facebook pages  for official company communications, as well as informal announcements. If would be interesting if we start to see the mindset and reputation of Facebook in the corporate world change, as a result of this latest hypothetical initiative.

Question is, would we see big corporations, like banks open up to Facebook in the office place, or will they see a blend of personal and business in one tool not be so trusting? Would the tool be separated from the personal Facebook platform, and to what degree?