This app was mentioned in 6 comments, with an average of 10.17 upvotes
Given the latest news about Niantic splitting from Google and all the rumours around it (finding new sponsors, possibly turning Ingress into freemium), portal submission would be the last thing we should worry about. I doubt they even have resources to process them in the nearest future.
BTW, if you're on Android, you can always use Fake Camera app to resubmit.
On Android you can turn off sync, make your submission, then turn on sync when you get back to wifi.
Or like me, use this to submit the last two years of portal opportunities that were unable to be submitted at the time: https://play.google.com/store/apps/details?id=com.blogspot.newapphorizons.fakecamera
It is easy to do, but I don't think there is an app for that? I can try to make it some time later for you if you want to
Update: There is an app like that already: https://play.google.com/store/apps/details?id=com.blogspot.newapphorizons.fakecamera
It is not that hard.
if you're on Android, use Fake Camera app https://play.google.com/store/apps/details?id=com.blogspot.newapphorizons.fakecamera&hl=en