As you probably know, Monero users are getting their their transaction correlated and personal details dragnetted out on a daily basis now.
This shows how critical is the “forgotten layer” (p2p) of blockchain to privacy coins. ZF has already published a blog about it - Assessing Mixnet Production-Readiness - zcash foundation . Unfortunately for us, the ideal contender for a private broadcast protocol (a high-latency mixnet) likely will never be developed as there are simply no other applications outside of transaction broadcasts that justify the time and effort needed.
I would personally recommend funding the development of such mixnet through the grants system - even though it will likely to be a “capital-scale” project involving at least half a dozen people.
