Artist Tim Bradstreet told SFX Online, this about working on Blade 2.
"I received a call from Guillermo back in late March. He told me that he had just signed on to direct Blade 2 and he wanted me to be one of four conceptualists to work on the new film with him, the others being Richard Corben, Wayne Barlowe and Mike Mignola. He was leaving to go to Spain to direct a horror film in the next few days and told me that New Line would be contacting me shortly. I asked if this was a for sure thing, to which he replied a definite yes. So all I know for sure is that Guillermo is directing and at some point I'll get a call. However, I can tell you that my responsibilities will involve designing the look for the vampires in the film."