Ketu is the Moon's south node, a shadow planet with no body of its own. It stands for letting go, the past, sudden endings and the turn inward. It moves backward through the zodiac, and Rahu always sits in the opposite sign, reaching for what Ketu releases. Leo is a fixed fire sign ruled by the Sun, which is neutral to Ketu: the sign of kings, fame, pride and the spotlight.
With Rahu in Aquarius, the crowd, its networks and its machines are what the world is reaching for. On the Ketu side, single rulers and personal glory lose their hold. Heroes fall or step aside. The lesson is that a title can be taken away, and that what someone does without one says more about them.