Am not quite as positive as MP. Although the structures look like E cells, there is some conflicting data in the photo. For one thing, the cells, collectively, do not have sufficient down slope for queen cells. E cells typically slope downward at about a 45 degree angle. That's sometimes as close as they can get to vertical. Note that the cell immediately above the capped cell appears to actually slope upward? Drones are reared horizontally.
The capped cell, itself, does not look Queen-like. Almost any queen cell tapers in diameter to a capping dimension close to worker size. This cell capping is quite blunt, about the same size as the two at the bottom of the picture, which are drone cells.
Am not saying there are no queen cells in the mix, but the evidence suggests drone to me.
Walt