The only date management ever mentioned for dividend restoration was "maybe 2026." That was a year or two ago. Worldwide air travel is still recovering nicely. My guess is some dividends may return before that.
Motley Fool addresses BA's fragile balance sheet and possible div restoration. The below article is from October 2022, but still relevant. On the plus side, Boeing is still the dominant American civil aviation stock: A must-have Dow-30 blue chip with a history dating to 1916.