If it is true, Interplay is probably trying to resurrect themselves from the dead. They should also try to contact Stardock to see if they can get FS on Impulse for more market penetration.
Interplay's been risen from the dead from quite a while. Noticed all the old Fallout, MDK, Earthworm Jim, etc. games on Steam?
EDIT: This also means that it's likely Interplay isn't looking to sell the rights to Volition. If they did though, they might make money, just like they did with Fallout to come back from the dead.
Or, more likely, Interplay wants to mark up asset values. Imagine how well Interplay could do selling FS1 for $5 on two weekend specials over the space of a few months. Steam has proven to be a reliable and popular distribution method; a hundred or more thousand sales in a weekend would "revive" Interplay's finances and prove that Freespace IP has a real value greater than the price of a lower-middle-class suburban home. Similarly, they've released Earthworm Jim and MDK on Steam. If it's available to buy, it'll be bought. If it's sold on promotion, it'll be bought en masse. Just think of all the indie games that appear on weekly special; IIRC, sales of those titles tend to be 400+% higher than without promotion. Imagine what'll happen if Freespace 2 appears with decent art and a 91/100 metascore. It'll sell like hotcakes, especially if priced at <$5.
Here's a question: can you install it? If you can, does it run?