Yes, absolutely, 100% M1 support is coming! The app itself is native on M1 already. The next step is just a matter of compiling all the bundled binaries both for x86 and m1. It also means I'll need to distribute two separate versions of the app, for size reasons. In the end, these M1 Macs are so powerful that the x86 binaries are giving excellent performance already, so for all these reasons I decided to hold off for now and prioritise improving functionality.
However, I'm not forgetting that one of the key points of Indigo is to extract the most performance our Macs are offering, and not to run things in an inefficient way, so absolutely full-M1 is on the roadmap.