MQTT support for both incoming and outgoing messages means Event Grid can serve as the hub ... as in Azure’s own stream analytics tooling. Those events could also be stored in Azure Data Lake ...

Additional event sources that Microsoft plans to add include Azure Active Directory, API Management, IoT Hub, Service Bus, Azure Data Lake Store, Azure Cosmos DB, Azure Data Factory and Storage ...

Azure Event Hubs, Azure Data Lake Storage Gen2, and Microsoft SQL Server. More real-time data can now easily flow to applications for smarter analytics and more context-rich experiences.