AVB interfaces are starting proliferate - they provide ethernet transportation of up to 512 audio channels over regular network cables of up to 100m. Which is handy as current versions of OS X support it natively. MOTU were one of the first to incorporate it into their audio interfaces - many of the current models now support it.
At Musikmesse, they introduced three more variants:
M64 - MADI to AVB (and back) with both optical and Coaxial connections. All can also be used as audio IO via the on board USB connection.