With Ekster I have almost implemented the full protocol of Microsub. What is next? What…

With Ekster I have almost implemented the full protocol of Microsub. What is next? What more is possible with the protocol, the servers or the clients?

Specific inputs:

• microformats from websites
• Feeds (implemented) RSS, JSON feed, XML
• Micropub posting (implemented) so other services can post messages Example: Pipedream receives email and posts as item
• API's for specific websites
• Saved search

Processing and filtering:

• Exclude posts with regex (implemented)
• Exclude posts based on post-type-discovery (implemented)
• Improve post content
• Advanced processing with user-defined flows (like Huginn?)

Specific outputs:

• Global and channel search (implemented)
• Standard feed reader (implemented)
• Share to your own website (micropub likes, bookmarks, and replies)
• Share to other services (Instapaper)
• Notifications

What else?