update (may be spoil): there is an button on the left near the wall of ice, but this button worked for me only when i killed Velanir...
There is also in bottom level of the fortress (not in the headquarter) a key locked chest and an chest inside the ice... How could we access them ? Any help ? to open those chests please ? thanks
No, not quite. I have 1.01 and that lever cannot be used, no matter what options i use in the conversation with the ghost or keara. So no, that problem was not fixed with patch 1.01.
In order to get passed the icewall you must use the switch before entering Keara's Room. For some reason no matter the outcome with Velinar the switch does not work after defeating Keara. Make sure to use the switch before entering her chambers.