It’s time for Apple to go back to basics again and radically simplify its product lines. Now that the technologies have matured, iPhones should ship with universal network support, (...) Similarly, there should be one iPad — the cellular + Wi-Fi model (...) And every aluminum or steel Apple Watch should ship with a Sport Band. - 9to5Mac
Add to this great list: remove the non retina MacBook Pro. Also scrap any 16GB iOS model so that there are only two choices. 64 or 128GB.