I don't think so. May be a temporary price hike or decline from scared Americans.
REEMBER!!! Bitcoin is used in world wide. In 2012 and 2013, American Banks restricted transactions related to Bitcoins, but that didn't stop the rest of the world from using and investing in the Bitcoins.
Infact, you can still withdraw into FIAT outside USA, Americans are the one who have to pay every expensive fees to Buy the Coiins, and then another hefty fees to cash them out.
Mt Gox, if you are American, forget about be able to cash out
Bitstamp, if you are American, you can withdraw but pays a lot of $$$ in fees to cash out + 5-7 days of wait + another 3-5 days in FIAT Transactions to show up in the USA.
Coinbase, American Company, but if you want to buy coins, you may have to wait for about 10-14 days while they hold your money just to buy the coins. (You'll miss out on the big price move if you were not planning things ahead of time)
BTC-E, you can get your money out to FIAT, but if you are American, it's a huge wait period to cash out, or they may even deny your withdraw request stating they can't accept your documents.
Bitcoins has a hard-numbered cap how many coins would exist. If the demands exceed the market, price will natually keep going up while many others are just holding on to the coins or May be they can't cash out because they are Americans