There could be a possibiility that the DAO hackers will dump their coins. ETC is more dangerous than ETH.
But there is also a possibility that Vitalik's insider friends will dump their coins because they know they will lose this battle. The community and the crypto development world now could view Vitalik as a joke and a fraud and now no company or start up will now build on top of the Ethereum fork. Many are losing confidence in them so it is best to stay away from ETH and ETC.