I predict that BTC will range bound between $300 and $500 for the next 12 months, until investigation for mtgox claims begin.
Then it depends on what the final decision is. If mtgox is liquidated and bitcoins sold, I don't see a future for bit coin. Its value will crash to $10 stay there for ever.
If gox is saved by savegox.com or other buyers, and creditors refunded for 20% to 100% of their lost funds, bitcoin will end 2015 at $20K and will continue its run to $100K in 2016-2017