3D Touch is one of many features present in the iPhone lineup, but it might be one that might not be sticking around for too much longer, if rumors are any indicator.
3D Touch
New ‘AirPods 2’ Expected Holiday Season 2019; 3D Touch May be on the Way Out

Most of the attention on Apple’s supply chain is focused on what’s coming right around the corner, but that isn’t stopping some analysts from making predictions on what’s going to happen next year.
3D Touch Multitasking Returns in iOS 11.1 Developer Beta 2

Earlier today, Apple officially seeded the second developer beta of iOS 11.1, which not only brings brand new emoji to the mix, but also brings back one oft-requested feature.
3D Touch App Switching Will Return in Future iOS 11 Update

Back in June, it was revealed that using the 3D Touch gesture to switch between apps was being removed from iOS 11.
The Complete List of 3D Touch Shortcuts for iPhone

By now, you must be familiar with the long press action in iOS. Like when you tap and hold on an app icon and they all start to jiggle. When you press harder on the screen (don’t worry, you’re not going to break anything), you’ll engage 3D Touch. You’ll know because one, there will be a vibration feedback on the screen. Second, something will happen on screen.
iPhone 8 Rumored to Feature Flexible OLED Display and New Pressure-Sensitive 3D Touch Sensor

The “iPhone 8,” which is believed to be Apple’s flagship for 2017, is rumored to feature a ton of changes and new additions when compared to previous generations.