Undertale follow-up Deltarune's next part(s) are “going better than ever”, but don’t expect them anytime soon
The next part of Undertale creator Toby Fox’s current project Deltarune is actually two parts, as chapters 3 and 4 plan to release together. It sounds like that release is still a ways off, according to a recent update from Fox, even as the latest chapter seemingly makes “great progress” and the team eye up work on Chapter 5.