If Sony is backing that Bloodborne+$20 gift card bundle it's clear Sony has a decent amount of hardware margin to play with, and they will probably keep throwing out good bundles until they officially price cut. But maybe they will keep the price cut to $50 so they can keep throwing out nice bundles. After all if you start bundling content all the time then you train the market to expect it even after a price cut.
“The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.” - Bertrand Russell
"When the power of love overcomes the love of power, the world will know peace."
Jimi Hendrix