Is it a new game? It's a remake of the previous title? No one knows, and that's how Nicalis likes it. They've put out the teaser video above for a project tied to 1001 Spikes. Many fans have been wondering what happened to the planned port of 1001 Spikes to Switch, and while we still don't know what happened to it, it appears Nicalis isn't done with the franchise.
The footage makes it look like this might be an auto-runner, which has us leaning towards a brand-new title in the 1001 Spikes series. Whether it's a numbered sequel or spin-off remains to be seen.