I don't know if someone seen this page already, its really old but it's pretty funny to see how an A6 could look like if Alesis did some new designs too it:
http://www.stucki.com/krhen/downloads/Aurora/
The guy who did that mod has begun planing to mod his Neuron-synth; and the first design would look something like this;
http://www.stucki.com/krhen/downloads/ganglion.jpg