I hope it happens. The first one produced one of my favourite moments in a film. Woman: "Save my kitten" Hellboy "Hay Lady, give me a break". Still makes me laugh....
100%... this is Mignola. He wasn't happy about the direction that Hellboy II took, so I guarantee he didn't like GDT's plans for the third film. Perlman wanted this to happen last year, so unless he was just hit with health problems, I doubt it's him keeping this from happening.