I am trying out slowly Blender 2.8, and since I am still getting used to the new shortcuts, it seems that my gizmo is gone. By all accounts it should be there, unless I have accidentally pressed a shortcut that disables it. It seems that ctrl+space is assigned to something else and searching for gizmo or manipulator in preferences/input does not yield to any relevant results.
I must have tried at some point to change the transform orientations with 2.7 shortcuts. This will get a little bit more to get used to it than i thought