I see from the news page
Unity Version Release Schedule
Dear Settlers,
Today, we are proud to announce the final dates for “The Settlers Online” to go public with the Unity Version. With the new version, our beloved game will finally be playable in the browser again, hooray!
The dates for the Unity version to release are as follows:
20th of July: All International Servers (except German)
21st of July: German Servers
We'd like to again thank you for your support and especially your help in diligently testing the Unity Version on our test server. We have already fixed many of the issues you reported and further improved the new version’s performance. Rest assured that we won’t slow down and will continuously work on improvements after release.
But for now, let us celebrate having all set up for a very bright future for “The Settlers Online”!
Your “The Settlers Online” Team
Which is great guessing the rest of the world servers gets theirs first as they dont want to annoy the german servers when it goes belly up there are still loads of bugs that havent been addressed yet and they may of fixed them but as no one has had a chance to actually test that there prob still bugged