So what, 5 tiers and 8 or 9 patches? 7 months in between raid tiers. 3.5 months in between patches. .5 patches have the raids again?
10.0- March 2023 (raid)
10.1- July 2023
10.1.5- October 2023 (raid)
10.2- Jan 2024
10.2.5- May 2024 (raid)
10.3- August 2024
10.3.5- Decmber 2024 (raid)
10.4- April 2025
10.4.5- July 2025 (raid)
11.0- March 2026.
Although, I still think 4 tiers and 2.5 years is best.
Cut .4 and .4.5 out and launch the expansion September 2025.