The idea that it could overtake Bitcoin seems farfetched...but with a lot of hashpower behind it (Bitmain), a major payment processor (Bitpay), and support from large exchanges (Bitfinex, Kraken, Okcoin, Huobi, BTCC), I could see it gaining some traction.

The bigger question is, what does that do to Bitcoin's network effect? According to Metcalfe, it means the value of both networks will be worth considerably less in a network split (assuming BCC's share is sizable).