The Verge: ‘Apple is testing a standalone app for its overhauled Siri’

The app will help finally give Siri conversational capabilities through a chat-like format that looks similar to the interface Apple Messages uses. The app will provide users with a dedicated place to find their previous interactions with Siri, search through past chats, start new chats, switch between voice and text modes, and upload documents and photos to be analyzed.

This is a good direction, but I also think it would be kind of nice to have a chat with AI Siri right in Messages.