yeah I feel like theyll definitely release another new song before the album and Gaga will promote both songs, cuz it's not like PI is a hit, she doesn't have to perform it alone + it's not like Gaga pushing PI will make it a hit.
So yeah I really hope they'll release a promo single (and I hope they will release a promo single that has potential to be an actual single and maybe even push it as a 2nd single if it clicks) and Gaga can perform both songs on Fallon, SNL etc. many options.
Is Joanne really the biggest song on the album tho ? Gaga described it as the heart of the album, @JeffKoons described it as " BIG " and I heard another member describing it as " Explosive"

So excited for it, maybe they should release that one, so the name "Joanne" can click with people and then when they see the album it will be recognizable !