I also am very sad that we have had to wait so long for season 2 of Aetherlight and don't have much information right now. I love Aetherlight and want new awesome stuff to do.
However, since I love Aetherlight, waiting is probably the best thing right now. I don't want the Aetherlight team to rush the development of season 2. While I would love to get more content soon, I also want it to be the best it can be. A delayed release date is disappointing, but often worth it in the long run if they are not ready now.
Finally, while we do not have much information, we know that beta testing is still happening! It is been hard to wait many years while Aetherlight has been unfortunately stalled, but this is an exciting time. Though season 2 is not yet upon us, I have more hope for its return than ever before.