This is an old revision of the document!
Version 1.1
Version 1.15
Version 1.18
Version 1.2
Version 1.3 (The big engine change)
Version 1.4
Version 1.5
Version 1.5 (Extra download, doesn't change the version)
All DLC both KS and extras now complete. End of BS production. Only bug fixes left.
Released
Unreleased
Two more major updates. The content from the previous roadmap still applies, just the timing is (obviously) different. Costumes are likely with the first update. CM2 will be its own update.
WHEN!?
VS Mode (Local/Online)
Chaos Mode (Local/Online)
Some clarifications from Question:
Yes. Split screen.
Double miriams.
The co-op mode is not a playthough of the regular game.
No crossplay, if that's what you're asking.
Estimated/hoped for November sometime.