devtrackers.gg
The " its a shame that all that content was made" isn't about archwing in general but specifically about modular archwing which my impression is was a fair way along design wise and asset wise before they decided they didn't have a good way to incorporate it.
Those assets and design ideas all being made already is what they would like to do something with but are just unsure of what not archwing as a whole. At least thats my impression of things.