I’ll bet a lot of money that even if there is a moderate price increase, season ticket sales will still go up dramatically. It is just a matter of supply and demand. Everyone wants to sit on the West side, and will REALLY want to sit there once the new stadium is completed. Once the West side capacity is reduced, the only way to guarantee a spot on that side is to buy season tickets.
I would expect them to raise prices on the West side, but I’d be shocked if they raise prices for general admission.