Tenno, we have reopened the Cross Platform Save drip gate: everyone can attempt to Link or Merge their accounts via the Account Management page on https://www.warframe.com/
Like our December 21 test, we are operating this phase in a "stress test" style, meaning we may need to pause periodically if we encounter stability issues. We are actively monitoring and will communicate if and when we need to close the gates for stability.
We will continue to update our Socials, Forums, and in-game Red Text as we test and prepare next steps.
For more information, read our Cross Platform Save Rollout Information post.
To ensure success and stability during the launch of this highly requested feature, Cross Platform Save will be made available in staggered phases.