They are planning to reopen the BL on Friday.
Meanwhile the lava has reached or even exceeded the height of the defensive walls, is seriously threatening to breach them, they are desperately trying lava cooling and wall reinforcement, people in the area are being warned to conserve hot water in case of damage to actually important infrastructure. And there's no bloody car park!
Enjoy this photo from the Vísir website which I believe is credited to the power plant, showing the lava literally flowing around the entire BL held back by walls it's a whisker away from breaching. Yeah seems like a great idea 👍