Boring period incoming. Thank Bitcoin -- chance to focus on your family over Christmas instead of checking the price every 20 seconds.
What's the fun in that?

He goes on to say:
I predict that Bitcoin will trade for under $10 a share by the first half of 2014, single digit pricing reflecting its option value as a pure commodity play. Miners/speculators will be best served to acknowledge the meltdown has begun, act quickly and take fleeting profit off the table.

I'm sure he wouldn't be willing to bet on it.
If you trade your Mtgox BTC to Bitcoinbuilder and Mtgox declares bankruptcy, what happens? Briefly looked over the website and found nothing.
I would assume they would return them to the actual owners. Not that it would matter much...