A slide taken from an official video meant for developers has revealed some Windows 10 for Phones Action Center enhancements.
1) Four rows of action buttons instead of three seen in latest preview build 12498.
2) New Flashlight & Quick Note toggles in the action center.
3) Cellular Data toggle is back. Battery Sense (?) is also present as a new quick action button.
3) Notifications appear slightly different in action center. To check how notifications appear in the current build, check below screenshot.
Thanks Rihan for the tip.Cheers!!