I hesitate to mention a commercial product, because I currently have zero experience with it, but what about the LOR iDMX1000?
From their web site at
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LoginIn addition, the iDMX1000 can act as a standalone director and it can be used to simultaneously control a LOR Network and/or a DMX Universe.
Do NOT buy this on me saying this; as I said, I have zero experience with the device right now. What the above says and how I"m interpreting it may be two different things. But I'm interpreting the "standalone director" as capable of storing your sequences for playback without a computer.