Will there ever be an option to make chat not persistent?

The way Teams chats are stored are slightly different than S4B. And as you know, S4B did not have persistent chat, stored its conversation history in the user's mailbox and could be easily deleted by the user. Teams stores its chats in the user's or Group's mailbox but is hidden from the end user having the ability to delete them. This is now an admin controlled function. Today, the least amount of time a chat can be stored is 30 days. We are looking at lesser time options but don't have a definitive timeline yet.