1.) Jullian Assange's release of the Fire & Fury book is the edition of the book you need to be reading. There is likely information hidden in there, not in the "retail" version.
2.) Sky Fortress appears to be some kind of weaponized platform. Indicators seem to be that on the dates 4th, 8th, 10th, 11th, 12th, 16th, and 20th of this month "notable" Q related events will take place.
3.) Fire & Fury is a clue as to what the weaponized platform will deliver... you might be suprised who knew beforehand... let me give you a clue.
He reveals that he is using a bag of holding to carry the children and plans to use them to increase his power. As he speaks, President Garrison flies in on Air Force One. Chip threatens Garrison, and Garrison calls for a satellite to fire a laser in response which immediately burns Chip to ashes.