Yes, we will: eventually. However, I expect to get a much longer service life from USB-C connectors than we have with previous USB-A, USB-micro/Mini, FW800, Mini DisplayPort, eSATA, MagSafe, Lightning, and ethernet ports. USB Mini and Micro have developed USB a very bad reputation because they fail young, carry a laughably low amount of power, have poor service lives, and if plugged in upside down have a tendency of destroying not only the cable but the power port on the device itself - USB-C is the redeeming solution to those garbage ports. The USB IF thought this one through very well, and has placed longevity at the heart of USB-C's design.
One thing I am curious about is whether the metal Apple uses on the plugs are softer than the metal surrounding the port on the computer. My assumption is this is probably the case, to place greater (both physical and cosmetic) wear on the plug than the port, resulting in a cable replacement instead of having to replace internal components.