I predicted they would do something like this in my post about including "black and brown" in LGBT, where I said they were planning to replace the American flag with the gay one.

I think I see the play now. They declare a new holiday, the second Kwanz... er I mean Juneteenth, as a replacement for the fourth of July. (it even comes earlier) Then they suggest a flag that is just an alteration of the American flag, as they do here, to test the waters and get people used to the idea.

The rainbow switch will be later. They might even incorporate some elements of our current flag into their gay one. Watch for them to add stars to the pride flag.