As long as the Cards try to nip at the heels of the contending NL Central champs there will be a strong rivalry. Of course, without a healthy Carpenter and possibly Garcia, maybe the Cardinals and the Cubs can reignite their rivalry in the basement.
Hacktastic: The Story of the 2014 Cincinnati Reds
Can't win with 'em
Can't win without 'em
Maybe I'm not explaining myself here properly. From a Reds fans perspective, the Cardinals may have been a heated rival for years. From a Cards fan perspective, the Reds were never a heated rival until they started to compete for division titles.
I hated Larussa and Carpenter, but don't hate the Cardinals as a whole. With both of those whiners out of St Louis, my disdain has 100% shifted towards the Pirates. I hope Chapman plunks everyone in that lineup with a vengeance.