I just noticed...
Prussia's drama CD is coming out on 26th of August.
My OTP's anniversary is on 27th of August.
I know it's just a coincidence combined with wishful thinking. All of the drama CDs so far have been based on pre-existing comic strips, and Brandenburg hasn't appeared in the comic.
And yet, I cannot stop nursing a futile dream that Brandenburg will get at least a fleeting mention. Just an acknowledgment that he existed.
*forlorn sob*