Connect units are only wireless currently. With ability to go hard-wired, this flexibility would open up a wealth of new possibilities for utilizing Sonos in custom integration applications.
Typically, multi-zone stereo amplifiers are hidden in racks, while the speakers are frequently in-wall / in-ceiling variety.
By creating slender (vertical) Connect CI units which could be hardwired (1 direct connection to mesh with the rest daisy-chained), the multiple Sonos zones are implemented in a convenient rack mount location where they can be plugged directly into the amplifier via RCA or digital (if amp so equipped) IN.
Most people like Sonos' backbone / UI / control for the system; however, from there, product choice and performance is constrained and the wireless-only implementation is visible (great advertising for Sonos but low WAF).
Since the avg # of zones in many homes is 6, at current MSRP, this represents over $2,000 of Connect business alone.