This is not a viable option. It already didn't work for Cindy Lauper.
Oh well, about 6 years ago Cyndi Lauper guest starred on ATWT to promote her new gay anthem, maybe Gaga can do the same in about 20 years on a fashion show on The Bold and the Beautiful?
The tour should easily do around $90,000,000.
It's 100% sure she'll gross $83,000,000 at least.
Anyway, with the artRAVE, Gaga's total gross with her tours should be between $485,000,000 / $490,000,000, which is not bad at all. With only three tours. Which means an average of a bit more than $161,500,000 / tour.