It seems that selling off the Fallout IP hasn't reversed Interplay's fortunes -- nor has ... planning to make a Fallout MMO. According to a recent SEC filing, the publisher ended 2008 completely broke. But don't worry! Interplay has a plan: Get more money from somewhere.
"We continue to seek external sources of funding," the company stated, "including but not limited to, incurring debt, the selling of assets or securities, licensing of certain product rights in selected territories, selected distribution agreements, and/or other strategic transactions sufficient to provide short-term funding, and achieve our long-term strategic objectives." We assume that those long-term strategic objectives would include paying off the new debts incurred in order to provide short-term funding.
The document does mention that the publisher continues to work on "the development of a MMOG code named: "Project:V13" (the alleged Fallout MMO) as well as "sequels to some of our most successful games, including Earthworm Jim, Dark Alliance, Descent and MDK." All decent reasons to hope the company doesn't tank.