"Probably"? I don't think there's any probably about it ;-)
I quite liked the bit about his debut novel - that would be the vanity-published debut novel with a run of only 250 copies.
Mind you, the Slaine novel should make interesting reading. Here's guessing we'll see one or more of the following:
-- Celtic vampires, possibly painstakingly researched, but likely to be just as tedious as most vampires written by fat, pretentious tossers
-- Absolutely no humour whatsoever
-- An even more dull, self-important Slaine than in the Books of Invasions
-- A shoutout to the Barbarian Street Team for doing all the marketing and legwork that the author/publisher should have done themselves