It is possible to avoid having your device data wiped but you'll need to wait until Google starts making the first developer preview available as an OTA, which it might not do and instead decide to wait until the second developer preview build and beyond.
Mobile World Congress brought quite a selection of Android devices that tried to mimic the iPhone X by building in a notch, so it's probably a good thing that the Android team is catering to this trend fast.
Google is offering support for the latest Software updates for their new smartphones only which are of 2 years old.
Android P Developer Preview Arrives, Lovingly Embraces Display Notches And Revamped Notifications
Starting with Android P, Google is taking steps to ensure developers aren't using private APIs when developing apps. Visually, other changes include a slight redesign of the notification panel. In this way Messaging notification is getting richer for smart replies and picture previews. The API also lets you call a logical or fused camera stream that automatically switches between two or more cameras. One of the features it has is Google Lens which enhances the capabilities of the smartphone's camera. Developers will have to make sure that everything looks neat even with a notch when creating their apps.
As expected, there are some behind-the-scenes changes that Google has made. It also introduced support for the IEEE 802.11mc Wi-Fi protocol.
I will be doing a separate article on most notable new features of Android P. So, do not miss the new articles if you want to know more about Android P. There are factory images for the Google Pixel, Google Pixel XL, Google Pixel 2, and Google Pixel 2 XL, and you can sideload them right now.
Restricting access to the microphone, camera, and sensors from applications that are inactive or in the background.