It’s been so long since Spotify announced a lossless HiFi tier that many assumed the streaming giant had simply scuttled the feature, but now there are hints that HiFi may still launch, and perhaps relatively soon. According to a post on Reddit, a longtime Spotify user who had recently ditched the service for Apple Music claims they got a survey teasing a new plan–“Spotify Platinum”–that boasts HiFi, among other features. As first reported by 9to5Mac, the survey says Spotify Platinum includes “everything” in the $9.99-a-month individual plan, as well as: HiFiStudio SoundHeadphone TunerAudio In…