Hello! Yes, it is planned, but at the moment there is no specific date for the update
It is possible that some add-on on the forum is creating a conflict: I just re-tested the functionality on the local forum and it's working as supposed to; it also works well for a my customer with whom I work closely. I recommend running a copy of your forum for testing and disabling add-ons one by one to find a conflicted add-on
But this contradicts each other. You say that members reply to a thread, then a bot replies based on time, and at the same time you say that you want to use this feature only in threads without replies - the way the Timed Reply feature works now. I don't get it. Do you want a delayed reply feature that doesn't depend on whether a thread has replies?
Unfortunately, I still can't understand what you mean. Could you give me an example, please?