posted by wap, platform: VIVO
Saudi Arabia (and probably United Arab Emirates) already approved it.
South Africa, Japan, South Korea, Turkey, US, Australia, New Zealand, Brazil and UK now are already in Phase 2 or close to a final decision.
Europe hasn't been notified yet, but they have been doing a very extensive "Phase 0" and should start Phase 1 in October.
Then there are countries that should be notified soon or already in the process but we don't know it because they don't share any public info (India, China, Canada, Argentina, Israel, maybe Russia, Taiwan or Colombia).
So, UK starting Phase 2 is just a formality, nothing unexpected.