It looks like the traditional 7 Pack for Local Business Pages have now become a 3 Business Page Snack Packs.
Every query I have looked at is displaying this new local page snack pack, so I am pretty confident this is a rollout and not a test.
24hrs after this rollout, general consensus has termed it “local stack” as the snack pack that we see for hospitality sector looks slightly different.
7 Pack vs 3 Business Snack Pack
It all makes sense now with the removal of the Google+ Page link from unverified pages over the past week.
All business pages have the Google+ page link missing
Verified and Unverified Display
Click on a Verified business page in the local stack and you get all the business information.
Click on an Unverified business page in the local stack and you get a basic info box.
Waiting on confirmation from Google, but my money is on rollout.