Will they? Don't forget, the information flow is 2-way here, users get something useful out of it but Shazam (and now Apple) also learns what stuff is trending. If anything I actually lean towards them keeping or even enhancing Spotify and other service integration, at least as long as those services are viable: it effectively creates a direct channel into competing services that tells Apple exactly what stuff people want out of them, which they could then use directly in making Apple Music more competitive in turn.
Even if we take as granted that boosting Apple Music is a major concern to Apple, doesn't that at least maybe seem like an equally or more valuable way to do it? It doesn't make any users angry either or act as bad PR, they aren't taking anything away, and they get a massive information channel into every competitor and even real-world venues.
>And maybe no more Android support.
By the same token, if Apple wants to boost Apple Music in general then having information on music popularity and trends coming in from the population of Android users too also seems helpful.
I will be very disappointed if this comes to light, and the only integration we're left with is Apple Music.
Probably not likely, but probably not improbable either.
It's almost guaranteed.