This could definitely happen if further news come out of China or they ban bitcoin mining along with bitcoin exchanges. However, this is pure speculation and if this does not happen then i don't really think we'll be seeing a bear market this year.
Potentially next year as others have said, though.
One of your reasons is that the volume is low - which imo, it really is not. A lot of Chinese volume has actually gone unaccounted for, since they have moved onto p2p trading.