I just double checked on our online portal and they have updated it to say estimated build date of 01/05/2023, so unfortunately in our case it is May and not week 5 which is disappointing.I got my dates wrong earlier so if it makes you feel any better then my ordered Hybrid is scheduled for Week 5 build which is right hand drive. I assume you mean week 5 rather than May 2023. I was told my the dealer that build is "frozen" which means locked in by the factory. I know that often means absolutely nothing these days but I also hear that some manufacturers are actually getting faster.
Example, I understand two ships arrived into Tilbury docks recently with Hyundais and they're struggling to get them to the dealerships into customers hands as soo many arrived(came from Czech Republic). Most estimates on Tucsons PHEVs have moved ahead 1-2 weeks which may not sound like a lot but thinking back in that some builds were being pushed back 6-12 months, especially PHEVs. Consider Tesla, you can now order(big price drop since last week) a Model 3 with a delivery of Feb-Mar whereas 2 years ago it was minimum 12 months.