Yes, in SHORT-TERM, it's likely to fall (as well as silver & other commodities) as the deflation sets in but here's the thing with something like gold - it's PURCHASING-POWER (the quantity of stuff you can get in return for something) remains pretty stable compared to most things (here's something on this -
http://pricedingold.com/us-dollar/), especially against important things like & food, etc & in fact you may see increases in your purchasing-power
To paraphrase myself, let's say you can buy X stuff (let's say important necessities) with an ounce of gold right now, even if gold's price falls, you'll still pretty much be able to buy that much stuff with it, it's just that its value in terms of "dollars", "pounds", etc will have fallen because the quantity of money shrinks in a deflationary environment
Well, why not stick with currencies then, you can but I fear that Bernanke will anything & everything in his power to inflate the moneysupply & to counter deflation, he's a firm believer that Fed didn't increase the moneysupply enough during the Great Depression & I'm sure it's going to influence him into hyperinflating the dollar into confetti so there's always a risk with fictional-money so with gold at least you know what you're going to get, for the most part, with currencies, it could go either way - either it could be very rewarding or it might destroy you so take these things into consideration & then proceed accordingly
I've always been a little skeptical of silver because it can be extremely flaky because of its easy accessibility & liquilidy which are advantage & disadvantage at the same time but it wouldn't be too bad to put some money in silver since it's a little harder to liquidate gold; all in all, just DON'T PUT ALL YOUR EGGS IN ONE BASKET! Diversify - gold, silver, currencies guns & ammo & so on (things can get turbulent during crises so.......)