And not to say the iOS 8 couldn't use more improvements. I personally would love to see the ability to customize one's home screen--let's start with ditching the requirement that all icons must snap to the top of the screen and maybe add the ability to add some of the Today pull down 'widgets' to a home screen. Other changes I'd like to see off the top of my head--a 'clear all' button on the notification panel, the ability to customize what buttons appear on the Control Center, including the option to access settings directly, not just toggle on/off. Lastly, more developers need to implement extensions--it's been a slow rollout so far.
Yes, yes, and more yes. 100% would love to see all this. I've always argued that the ability to customize certain things on the software side is monumentally useful and important, and is far more than just about aesthetics. It's about functionality, too, which often gets overlooked or forgotten or, worse, downplayed. I mean, how many times have we heard the likes of Jrswizzle and his ilk saying because a certain way works for them (which is coincidentally always the Apple-way), they don't care or see the need for something to work another way? Too many.
Being able to customize how one uses their phone is a daily effect; far beyond just aesthetics or icon packs. Default apps mean a different experience. Customizable quick settings or glance-able information means a faster experience. There are plenty more examples that defy the notion that customization is just about looks.
Well, iOS 8 added more functionality than Apple has added to iOS in ages and the first few months were a bit bumpy so I welcome a focus on stability. The expectation for an annual OS update, on any of these platforms, is a bit ridiculous, IMO. Both iOS 8 and Lollipop have probably been the buggiest releases from their respective camps in ages---time to take a breath and slow down. Unfortunately, that approach doesn't sit well with investors.
I'm all for stability, too. I agree, iOS 8 was bug-filled. I couldn't believe what I was seeing and experiencing with my iPhone 6 at the time. And while I agree we're at a point where we can only add so much, I think that's more true for Android than it is for iOS. Android is a bit ahead of iOS in terms of functionality and features. Surely they can continue to add more (I still don't get why stock doesn't allow us to customize the quick settings pull down tray...), but it's really iOS that has the most room to grow and improve. The aforementioned things you posted you'd like to see would all be great. Full email attachments would be nice, too.
In iOS 9, we'll probably see stability improvements, plus... improvements on camera software, Apple Watch compatibility and features, maybe more security to Apple Pay, better Touch ID software, better fitness and health features, etc. That all sounds dandy, but I do hope Apple adds more, and more freedom.
Android... I'd like to finally see better RAM management, better battery management, and other small improvements. However, how this will translate to a TouchWiz update for the S6 is another story. And how long...!