After exchanging some emails with Erik Zachte, I learned that there is a new platform in progress which can enable wikimedia to share referral strings from browser requests provided that they originate from within wikipedia. I think this shouldn't raise any privacy concerns. I wonder when this platform will be available and is there any plan to release such data for outside researchers once this new platform is ready. I also think that, wikipedia itself can use this data, to suggest articles automatically without editor's involvement which can increase the navigation a bit easier, especially for articles where the reader is not very familiar with. Thanks