Topic: True Marketing Automation
You guys are so close to just nailing this.
I would love for you to include a tracking script, that can be placed on web pages etc., that will tie email users to website users, visits, etc. Basically like Mautic does if you are familiar with that. From the email side, you have them beat so hard it's not even funny, but with just a little work on the tracking side, you would be comparable in this manner.
IMO, it would not be a huge development lift for you and would add massive functionality and tracking.