It's ironic, the OP pointedly says it's 2015, and people come here and argue that there is no audible difference between lossless and the lossy formats. Wrong! There is a big difference between the formats in terms of sound quality, if you have the capable replay equipment.
Notwithstanding, streaming services such as Spotify, having been taking hold since about 2008/09 and that has to correlate with the steady falls in iTunes purchased downloads of music. 'All-you-can-eat' services in media is the way forward, like it or not, and the media companies have woken up to the fact that they can have another round of income by releasing their back catalogues in a new delivery medium.
Streaming services like Deezer, Tidal and Qobuz are trying to steal a march on each other, and most likely on Spotify, by offering higher quality streams, starting at the basic lossless 16/44.1 CD quality. Their lossless libraries are expanding rapidly as they do deals with the record labels, they have identified there is a market for quality streams and that CD's are dying as the lossless medium of choice.
Apple finally woke up to this and purchased Beats. They have already been quoted as saying they want to be THE COMPLETE MUSIC service that everyone wants. Effectively to wrestle back the market leader tag that they have steadily been losing to streaming services.
I am fully expecting them to amalgamate iTunes with Match and Beats into one new Music app. This will allow users with current libraries of purchased music (downloads or CD rips) to store their music locally and in the Cloud, as you can currently do, blend in the streaming service that Beats currently provides.
Now the key here, and in order to trump their competitors, all of that will need to be available at lossless (16/44.1) quality minimum, that includes both streamed music from their catalogue and one's own library in the Cloud. This is an integrated approach that the other competitors cannot match, most offer streaming only at various subscription bands, one (from those mentioned) offers the choice to purchase 16- and 24-bit downloads, but none AFAIK will store your music in the Cloud as well.
Here, Apple genuinely can offer one complete integrated service for music, it's just a matter of pulling all the pieces together, which I suspect is exactly what they are doing right now. They will trump this out as the biggest thing to happen to music since iPod and iTunes, and arguably they will have a strong case for it.
Bandwidth will be an issue for some areas, but 1st world countries are rapidly embracing fibre so that is not an issue, as people have rightly stated, HD video streaming is already a fairly reliable service coming into our homes or via wi-fi networks. HD music is certainly less onerous in terms of file size and bandwidth required.
And for those still stuck with poor broadband, or happy to listen to 256 or 128 streams, I am sure that Apple will offer a 'lossy' package as well, presumably at a lower monthly / annual subscription charge.
The main thing for all these providers, including Apple, will be to get you on a monthly subscription in the first place. Apple have the might to do it, Spotify could well be history soon.