Page 1, Panel 1 - The yellow speech boxes contain the narration of the new Dr Fate, who, throughout the issue, refers to everything (in this issue) as a past event.

Page 1, Panel 2 - "And speaking as someone who has already died...." Another (loose) clue as to the new Dr Fate's identity?

Page 5, Panels 3-4 - Hourman explains the Mordru time-paradox quite clearly. Essentially, Mordru opposed the Legion of Super-Heroes in the 30th century, but he hasn't done so yet. His appearances in JSA are possibly his earliest appearances, chronologically.

Page 12, Panel 1 - Mordru mentions the Starheart, which is where Sentinel gains his powers from (as opposed to the other Green Lanterns who are connected with the planet Oa and the Central Battery).

Page 19, Panel 3 - Inside the amulet we are greeted by Kent Nelson, the original Dr Fate. His wife Inza (also a former Dr Fate) waves in the background. And who are the two young boys playing together? Possibly Eric Strauss (former Dr Fate) and Jared Stevens (Fate).

Page 22 - The first appearance of the NEW Dr Fate!