You're right I just got the images to upload on my phone on the CZUB site and looked again and the checkering looks the same as the newest TSO but the triggerguard is changed yet again, this time to match the S2.
The mag release is immaterial since they're offering both types and the TSO has used both types. I'm wondering if the magwells will be blended now, if these are using the plastic or aluminum trigger, and if it will be over a year until they hit the US.
The S2 OR sure was available there long before we got it.