Matt’s doing making sure to have everything finalized before he ships any units! Mugsy will most likely be constantly evolving, but what he ships to us will be the finalized OG Mugsy. There may be (completely optional) hardware updates here and there for tinkerers, but nothing that is necessary for Mugsy to function properly. Any cool new add-ons will be made available to the public on github (say, 3d printable parts), or I imagine available for sale on heymugsy.com. I know he’s always looking to add more brewing methods to Mugsy, so we’ll probably see some of those in the future.
If you have any more questions, feel free to ask them here and I’ll either do my best to answer them or bug Matt to give us an answer!
(Matt, feel free to edit my comment if I got anything wrong)