I haven't heard any plans for this. But you can easily setup the MCS Backup Utility to backup to a network location or a tape drive. The backup does back up the CDR and ART databases.
Also, you can set the CDR and ART databases to purge at certain sizes, and if you want to keep more records than that, you can export the database to a file and move it somewhere else periodically, then merge it into a database on a server with more storage.
These are the paths to get to each CCX logs through CLI. They may be helpful if you are having issues accessing RTMT or downloading logs through it.
If you want to download them you have to prefix "file get " and you can add one of the options (re...