Which are going to be the first Semi-annual (Pilot) and Semi-annual (Broad) versions?

Is Creators (1703) the first Semi-annual (Pilot) version and slated to be the Semi-annual (Broad) version? Or is it going to ship under the old servicing model (Current Branch, then Current Branch for Business), and we should expect a later version in September to be the first Semi-annual (Pilot) version.

The latter is what Office 365 ProPlus is doing, apparently.

Rob