It appears that the picture Q used came from the 243rd celebration of the event.
This event occurred April 15th, 2018.
Using advanced maths, I place this year as the 245th anniversary of the original event.
From the website: https://sampan.org/2018/04/the-old-north-church-historic-site-hosts-243rd-lantern-ceremony/
"Each year, Old North welcomes hundreds of thousands of visitors to learn about the story of those two lanterns and the night that changed a nation forever."
SO....
I am assuming now that the lighting of the lamps in the Old North Church EQUALS FLynn's release.
If so, this signals the beginning of the battle that will change the nation again!!!
And this means it is time to unleash the Eagle of War!