They should at the very least evaluate ActivityPub. It's a W3C standard that reached "Recommended" status almost two years ago, is flexible enough for future use-cases, and already has multiple implementations like Mastodon.
In fact, any app can be made to act as a source, sink or both of ActivityPub events. I recently added ActivityPub support to learnawesome.org so that reviews can be consumed in any ActivityPub client. Implementation was easy and the data model is quite easy to understand.
ActivityPub is real-time pub/sub for the entire Web, something that Twitter could have been.
In fact, any app can be made to act as a source, sink or both of ActivityPub events. I recently added ActivityPub support to learnawesome.org so that reviews can be consumed in any ActivityPub client. Implementation was easy and the data model is quite easy to understand.
ActivityPub is real-time pub/sub for the entire Web, something that Twitter could have been.
https://w3c.github.io/activitypub/
http://activitypub.rocks/