"Lack of innovation" - what, because it didn't look different? What they did with the duel camera is pretty freakin cool. Also, you may not like the AirPods, but that auto-pairing across devices is pretty sweet.
Was it a huge release? If you're into photography on the iPhone, then HECK YEAH! If not, then it probably was minor.
Regarding the removal of the headphone jack - if it means that much to you, then by all means please move to a different product. I might have been more upset if this was back when the cheapest Bluetooth headphones were $250, but now... I seriously cannot see why this is any kind of big deal. At BEST this is a minor inconvienance (they include an adaptor with the phone, along with lightning headphones). There are actually a myriad of options available to work around it if you still want that 3.5mm Jack.
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Probably.
Frankly, it wouldn't surprise me if the next MacBook didn't come with one either.