Unfortunately, there is nothing Xposed can do about getting Netflix to show up in the Play Store on your device. But there is good news!
You can always do the "so they blocked the app from appearing in the play store because I'm rooted" workaround - sideload the APK from APK Mirror and subscribe to the Pushbullet channel that will notify you when the app is updated.
The Netflix and root issue is checking Google's DRM-Nazi integrity checker called Widevine DRM to block individual devices from seeing it or being able to install it from the Play Store, but the app works just fine when sideloaded. It's not like Android Pay or Super Mario Run that check SafetyNet each time it's launched.
Some people who know much more about this than I do believe there is actually a SafetyNet check happening in the Play Store, which could mean bad news in the future. If they integrate SafetyNet checks into app launches, then Netflix will only work on devices with locked bootloaders or that are using Magisk Hide, just like Android Pay, Mario Run, Pokemon GO, etc.
Here's a link to the spot on APK Mirror where you can download the apk to install manually on your device. Make sure you allow apps to be installed from Unknown Sources in Settings -> Security.
If you don't use Pushbullet: it's freakin awesome, and now is as good as any time to start! Easily push files back and forth between your PC, any Chrome browser, phone, or tablet. It mirrors notifications too and you can reply to most of them (e.g. if I get an SMS, it pops up a notification on my PC and I can read it, dismiss it on the phone, snooze it, or even type out a reply and send it). It's great for sending a webpage from your PC to your phone so you can take what you're reading with you and get up from the desk (or vice versa, if you want to push it to a PC for a bigger screen/real keyboard). And it has Channels that you can subscribe to (or make) that send you notifications when things update.
Or you could just check APK Mirror every so often to see if it got updated. Either way works fine.