The Wall Street Journal has an intriguing quote from Spotify’s Andres Sehr on its planned US launch, saying that the company is “looking at a slightly different model in the US”.What that model is, he doesn’t say specifically, although the WSJ suggests that instead of having two separate versions of the service – free and ad-funded, or premium and ad-free – Spotify will adopt a so-called freemium model in the US, where the service is free but users pay for certain features.Which we guess qualifies as “slightly different”, although we would have described the existing model as freemium too, if we’re honest. Sehr also reiterates that the launch may come this year or early next year, and that licensing deals are what is holding it up.