With The Witcher III releasing on May 19th we would have pretty much assumed nobody would be stepping up and competing with new material on the same day (right?), I'm not quite sure the highly anticipated Witcher III is enough to stop Bungie from adding to their already well supported game.
House of Wolves is included in the Destiny Season Pass or will cost you a very questionable £19.99 otherwise (for what will probably take you a day or two to fight through before the endless grinding begins).
House of Wolves brings exclusively to Playstation players the competitive map Timekeeper (until autumn 2015 at least).
If you are currently looking for cheap PSN credit make sure to check out CDKeys where you can pick up a £25 PSN card for only £21.84