which congressional district will McIntyre run in?

They split a portion of his district. I believe his personal residence sits outside of the 7th district.

So does he run in the 7th which has been redrawn and will have revised demographics and voters?

Or does he run in his "home" district which will contain all of his Lumbee supporters?

He & Mr. Pantano may not face each other in the next election. But they could both serve in the House.