We'll see. The only thing that actually looks new is "sharing audit log" and an audit log is a long way off from being able to effectively control sharing. Changing someone's password to log into their dropbox, delegate ownership of the folder to a shared account helpdesk controls, and then have helpdesk go through every shared folder to remove a terminated employee, then sending the original user a password reset, then requiring a helpdesk touch for every sharing change in the future isn't a valid business workflow. Furthermore, in the past Dropbox's audit logs have been paginated lists you click through online. Not the sort of thing you can automate. Here's hoping for a change.
Also, notice the phrasing: "With separate Dropboxes for personal and work, administrators can have the control necessary to secure company data, and you can still have your most important stuff at your fingertips." That sounds suspiciously like a sentence that says nothing at all, considering it's already easy to run two dropboxes, and all the problems I listed concern fully administered business accounts.
