On the topic of public announcements:

Modern Witch, somewhat special edition: Strike Witch of the Future

On the cover: Mio Sakamoto, visibly in her twenties, in jet Strikers, with lightning rifle in hands.
Three interesting features inside: story of the jet engine/strikers, very bare-boned but full of exclamation marks story of Tesla's lightning rifle, and, in the middle of secondary articles, introductory article about the Force, part one of four.

Very constrained furore in very limited circles, but way to preserve and spread good word of more magic.