Dave still has around 2,000 units to ship to Kickstarter backers, but considering the current issues and "fine tuning" of the 121GW, it might be a while before he can get that rolling - assuming the component supply issues have been resolved.
Then he can consider putting it into his own EEVblog shop.
Don't know when he would look at other distributors - but I don't think it will be any time soon.