Microsoft has Centaurus on a path for release. Might be announced this year, but I hear the actual release will be 2020.
Andromeda is all but dead. I have not heard any rumors of release (credible or uncredible). The only mention I have heard on the device in the last six months are on fringe web forums. Andromeda had a lot of problems, first WoA is still not great. The biggest challenge was cost vs. market expectations. The cost would have been $300-500 more than the announced Android folding phones. Cost would limit the market appeal making the market way too small of a market for a WoA device.