Many of had given up hope, but an official announcement has been made and I am, like many others, excited to start installing it on our Linux systems.
You can read the official announcement here…
https://blogs.oracle.com/database/oracle-ai-database-26ai-coming-soon-for-linux-x86-64-on-premises-platforms
Only the Linux x86 platform is mentioned specifically in that Oracle blog, but the MOS Doc 742060.1 also indicates AIX and Windows releases are scheduled (albeit tenatively) for next year too!