This here, however, somewhat does say it
The bugger wouldnt say which media source it was though, dammit....This is unconfirmed by any media source at the moment, but sources who went to the KCTS 9 Red Dwarf 20th Anniversary show said that Robert Llewelyn was there, and he mentioned this news. It was built up by Robert himself in the promo he did for the channel which is on their website.
Quote from the 'source', though please don't take it as red (pun not actually intended) until it's confirmed.
If true (which i think it is) exciting stuff, (found on doctorwho online):
The thing which i find interesting is that it says it's being made for BBC Worldwide. Does this mean it might not be shown on BBC1 or 2 ?At the KTCS9 20th Anniversary evening tonight, Robert announced to a small crowd that a brand new, 1 hour Red Dwarf episode had been commissioned by BBC Worldwide, to be filmed in October 2008.
Robert said it will star the original cast.
He would not divulge the storyline except to say that Doug Naylor was finalizing the script.