Koda isn't being let go. They're using the Heelfall release strategy for future releases, which is Bo makes the content, Koda tidies up the script, and then Bo releases. Koda can then work on improving whatever he wants without holding up releases. Essentially it means releases will be less polished but more frequent. Level 0, F7, and Swan/Crow Ch. 3 still need to be released by Koda. Bo also said he's focusing on ToT for the foreseeable future and doesn't plan on making more side games for now. Just wanted to clear up the situation for everyone.
And yes this also means Floor 8 has a decent chance of coming out before Floor 7. Bo won't change the name because it's a funny meme that way. Koda said he'd get F7 out before July and F8 but I would not bet on that.