I don't know if you have been answered yet.
The Holiday D-Lights Tour is on the WDW site, so it looks like they will do it again this year.
https://disneyworld.disney.go.com/events-tours/magic-kingdom/holiday-d-lights/
Did you know it is $297.14 per person? It does cover several activities in the 6 hours. It starts at 3:45PM, and will conclude after Illuminations.
Your group will be eating together as a group at a big table at Whispering Canyon Cafe, so you don't have to (or get to) pick a restaurant. It is not available every night, just offered on "select dates" in Nov & Dec. It would probably be good to go ahead and call and find out what you need to know so you can plan around it, though they may not have firmed up the dates yet they will offer it this year. It is expensive, but also covers a lot of "HOliday Delights", haha.