To elaborate on my Discord message:
So, the reality is that there's isn't much to announce about a revival of the Icarus Cup at the moment. It's something I, personally, would love to see introduced in the future. When I joined back in 2018, it was something that I reviewed and wanted to see come to fruition. However, at the current time, we believe to really do the Icarus Cup justice, and to ensure that it's fair for all Commanders to participate, will require some degree of development. Right now, the team's efforts are focused on this year's updates, as well as our 2020 release.
As our community team grows, it might be something we could run ourselves, however it's worth mentioning that it is a heavily-manual operation and not something we're able to dedicate our efforts to at the current time. I don't want to get your hopes up, so no promises but as I mentioned in my Discord message to Jonuss, this is something I would like to see happen in the future!
Edit: If you've sent me a Discord message and not had a reply, please poke me! I've got quite the backlog and I'm not able to get to all of them.