So at the moment Apple hold the 1st place in mobile OS marketshare, I feel the unfortunate thing that will happen as marketshare drops Google will slowly move to supporting projects other than android, and eventually drop support entirely and focus on making better iOS apps, Device makers will start making their own operating systems with tighter locked down appstores in order compete with iOS, we already see this with Amazon planning to switch to a linux based OS in future fire devices.
Google play makes 30% of all transactions on Android. It’s a money printing machine. It’s not going anywhere
Not to mention the treasure trove of user-data it provides. It’s no coincidence that Google makes it nearly impossible to separate their products and services from Android.