It's probably not going anywhere. Various iterations were either unstable or too noisy.
Circuit boards for the Raal experiment (code named "Bridgeport") have been ordered. I should know more about that in a few weeks.
Also, there is some thought to doing a very small run of a 10 year anniversary version of the L2. The basic circuit would remain the same, but there are a few changes that should serve as an upgrade to the original.