Natural gas is headed for $15 a thousand cubic feet or million Btu, whichever unit you like, rather than pulling back. The gov't estimates for winter heating costs may be conservative. This will at least bend some household budgets badly, probably break some. But, proactive measures are possible: Don't heat the whole house. Plumbers may be busy, though, and the plumber's bill may be even more than heating costs saved when some water pipes freeze.
Nonetheless, I've read that long-term contract prices are up from last year and when combined with increases in uncontracted gas, most customers should see a 30-50% increase in their heating bills. But this will not be the huge crisis that some (commodity traders?) are loudly predicting.