What is the new interactive feature being introduced in this video?

The video introduces 'super chat goals' as a new interactive feature where viewers are challenged to contribute 10 teal super chats. When this goal is reached, it will trigger the creation of a unique AI song about construction. The interactive format also includes a physical component, with the content creator committing to perform 75 jumping jacks live during the stream. This combination of audience participation and physical activity creates an engaging, interactive experience that encourages viewer involvement.