Sadly I think the ship has sailed on the remote. Why the OLD/NEW MTH stubbornly holds on to the belief everyone is just happy using their phone to run trains is beyond me. I hate the app and only keep the WIU around in case my remote dies. With that said if there is a USB port or telephone port to plug in your old remote. Maybe just maybe, Someone can come up with a plug in module that will talk to the remote. That way if our TIU dies we can upgrade and still use the remote.