Define "over". Opera the web browser earned $80 million on $380 of revenue and I don't know anybody that uses it. If Apple releases an Android iMessage client, but Beeper still has enough paying MAU so they can pay their employees and investors, is anything "over" just because there's competition? It isn't a winner-take-all like a game of football or something.
By over, I just mean that their days in the spotlight/media would be gone and people would generally be less aware of their existence. Not that they won't be able to compete against Apple.
If anything judging by Apple's Android apps recently, especially with my personal experience with their Apple Music app I would say they have a really bad track record thus far. It's a really buggy and almost unusable mess.
This is unrelated but I was actually duped by Apple Music, I intially thought that the audio quality was noticably better but as it turns out it was actually just louder. Raising the volume made YouTube Music sound just as good.
