It looks like the bondholders that had shorted have covered. Some of the long time short could have covered because the reverse split will give them a new opportunity to short again.
As far as someone buying them, I cannot imagine someone willing to take on the pension liability that is off balance sheet and in the billions of dollars.
As to the price of the stock it looks like the pumpers can move the price up 3 cents every 5 trading days until Q1 results are released. The pumpers do not care how large the loss is because Zollars said Q2 will be cash flow positive however his track record is that it will be cash BLOW negative. My expectation is that they will wait until May 5-7 to report results and therefore could add another 15 cents to the price of the stock.