As of now, the impact is not completely known and we don't expect to see a significant impact until such time as:
Currently, we don’t know the full extent but some of the possible impacts (for non-mobile app marketers) being discussed and in some cases confirmed are:
The update impacts mobile app advertisers far more than non-app advertisers with sweeping changes coming in to restrict the data they can see, however the full impact on advertisers beyond apps is not yet completely clear.
This could impact organic performance, since the newsfeed relies on signals from users (whether in apps or websites when browsing Facebook, Instagram or using Messenger) in order to see who you interact with, the items you’re interested in, groups and pages you visit and more. The opinion of the industry is that this impact would likely be felt over a much longer period but further guidance from Facebook is hoped for.
There are some things that Facebook are putting in place now and recommending we take note of and there are items we will be implementing and sharing soon to ensure our partners create new opportunities for the path ahead: