Yes it seems Bradley has turned down the role after it was offered to him. Originally, this Hellraiser movies was omitting him since it's a reboot of the series. Then a sequel was announced and had people wondering if Doug would return. He had this to say to Dreadcentral.com:
"I know that many of you will have caught up with the sudden burst of Internet chatter about a new Hellraiser film going into production, and will be keen to know whether I’ve been approached to play Pinhead again, so here’s the deal ..." says Bradley.
"I have been approached just in this last week (w/b 16 August) regarding a proposed new Hellraiser film. This is not the ‘remake’ which has been endlessly discussed for the last three years: with the working title Hellraiser: Revelations, it will be the ninth film in the series. I would stress that I have had no contact from, or negotiations with, anyone from Dimension Films: rather these contacts have been by way of private discussion with individuals involved with this project."
Bradley continues, "Following these discussions, and after reading the script and giving it due consideration, I have decided not to participate. The ink is barely dry on the script, and it is scheduled to be in front of the cameras in two weeks time and in the can by the middle of next month (September 2010). The miniscule shooting schedule is more than matched by the budget."
"Whether or not this means that somebody else will be stepping up to play Pinhead, I have no idea. I guess we can watch this space together ..."
"One way or another, this does not seem to me to represent a serious attempt to revive the Hellraiser franchise. However, I wish everyone who will be directly involved in the making of this film, good luck with it."