Haha, what a post... Rubber prices pressured to DECREASE! Haha, what a joke. If anything, the trend is to keep hte pressure of prices going up and introduce new products promising better performance/feel/characteristics/etc, then charge a premium. The only fire sales of rubber you can see at retailers are for long-discontinued frictionless LP rubbers.
If anything, I would anticipate the equipment manufactureres to be drolling at the chance for an excuse to market even more new offerings to have buyers tryout before setttling on a preferance. If anything, look at what happened when the ball moved to 40 mm. An entire slew of new rubbers cropped up promising this and that, then the same thing happened when speed glue became illegal and the tide has not yet gone away.