AOL Postmaster Lili Crowley posted an update yesterday to the AOL Postmaster Blog regarding the future of DMARC and FBL reports from the AOL platform.
Here's my summary of that information:
For DMARC reports: AOL is saying that the MX records for their domains are in the process of being transitioned from AOL inbound email servers to new email servers. As each domain's MX record is transitioned, AOL will no longer send DMARC reports for that domain. Any DMARC reports for that domain will now come from Yahoo.
(These are reports that you get from other ISPs, when you have a DMARC record in place that specified that reports should be sent providing information about DMARC failures. Most people feed these into a DMARC-specific automation platform for parsing and reporting. Not everybody has this / does this.)
For ISP Feedback Loop reports (spam complaints): AOL is saying that currently, FBL reports for AOL users on AOL domains will continue to come from AOL. But, at some point in the (very?) near future, these AOL users' mailboxes will be transitioned to new infrastructure. When that happens, AOL FBL reports from that user will cease. That user is now covered by Yahoo's Feedback Loop, and if that user reports an email message as spam, it will be handled in accordance with Yahoo's FBL process.
In my estimation, it's very likely that the transitioning of all AOL users' mailboxes to new infrastructure will take some amount of time. It seems quite likely that there will be a period of time when some of those AOL users are on AOL infrastructure (resulting in AOL FBL traffic) while you see some other AOL users sending in complaints via the Yahoo FBL process.
If you sign all mail with DKIM authentication, and you register your domains with Yahoo's FBL system, you should be all set. If not, it's time to get that process going.