as for diablo's son, in blade trinity, this was dracula (im pretty sure
), vampires....totally, then that whole thing with necros becoming vampires would be much cooler, since then they would be like part demon, would definately give them more inside info on evil crap (enchantments), somewhere in the new game, tyreal should become your mercenery because the evil has become so great, cain, as the last horadrim (i think) should started making more of them, or pull out some wicked awesome crap and kamikaze with all of his power to reseal the tear into hell, but hes captured when he gets to the end, so you have to go save him, he is the only one who knows how to reseal it, iunno, this was kind of broken up thoughts