torchwood.tv

Well the BBC say that in addition to series 3, "there may be more Torchwood episodes later in the year", so we could end up with an additional mini-series or possibly some one-off specials to make up the numbers. It's also possible (although unlikely) that they might even make a full 13 episode series for later in 2009.

So I would expect to see a Torchwood DVD set towards the end of 2009 containing both series 3, and whatever they have planned for later in the year.

Another possibility, although maybe not a likely one, is that they might combine the Torchwood mini-series and the forthcoming Doctor Who specials for 2009 into a single boxed set.

As for extras, I was actually quite disappointed with how few there were on the series 1 and 2 boxed sets (especially the lack of commentaries, e.t.c). So the 5 episode mini-series, may simply provide an opportunity to include a better package of DVD extras.