beta
I haven't read the novel, and I honestly have zero clue if the short stories are canon, buuut...
Chapter 19.6 seems to imply that Al becomes a true/full-blooded vampire in the future! His nephew describes him as having "black hair and black eyes" (p. 5), even though Al currently has light brown hair and grey eyes (ch. 6, p. 42). And since Kiev explains in the same chapter that a vampire's hair and eyes usually become black after they've been turned...
The true question is whether Akira also becomes a vampire, since he already has black hair (and Albert Jr. doesn't mention his eye colour)