I enjoyed Dog Soldiers but it was way over hyped so that was maybe why I was slightly disappointed when I saw it!
Many Region 1 website tend to make up future release dates for DVRAB so I wouldnt read to much into them stating a Winter 2005 release for the DVD!
I found this on thezreview.co.uk about Dog Soldiers which gives the start of production date:
Looks like Dog Soldiers 2 is a go. The producers have revealed that they are planning on filming the movie in either Luxembourg or Canada this April on a budget of $5.5 million. Directing is Andy Armstrong, based on a script by David E. Allan and Brian Patrick O' Toole. The movie starts right at the end of the first movie "with Cooper being picked up by an American team who, we find out, were the real opponents for the war games for Sgt. Wells’ squad. We discover more werewolves that we didn’t know about from the first movie, who may or may not be part of the family. There’s more action, more gore and there are definitely more werewolves. It’s all out in the wooRAB again, with plenty of guns and blood."
It might make a cinema release of Dec 05 if filming does start in April!