Hi Jim.. Greetings of the day.!
I went through your new scans and have seen significant improvement on the occlusion and smile, which the company is providing now.
1. The midlines matching: Your new scans midlines are still not matching 100%. As previously mentioned, it won't be noticable to layman so easily but you can still opt for a better midline match. If its not possible by the company, you can still go ahead with the current scans and if required, you can go for esthetic corrections using composite restorations.
2. Rotated premolars: As previously mentioned about rotated premolars, new scans show that posterior teeth have been de-rotated and now settle in better and stable position as compared to old scans. You can go ahead with the revised scans for de-rotation.
3. Posterior occlusion settlement: The pre molars and molars are still not settling in cusp-fossa relation as expected. You can get a revised plan for the same. Although sometimes, after the end of the treatment, they do settle out. (Post orthodontic treatment settling)
4. Inclusion of 2nd molars: They have still not included 2nd molars in their plan. However, it can be avoided if facing difficulty in its inclusion. But there might be chances of some degree of relapse later on, minimal though.
Overall, there has been an improvement in the revised treatment plan and you will get better smile and results as compared to version 1. But you do have an option of getting still better results.
Please note: Not all the results mentioned in the plan are achieved. There is some amount of results lost (About 5%, which varies from company to company) due to thickness of the material and virtual-to-real environment conditions and response. So it is always advisable to get the most in treatment plan so that result loss in real world is minimal.
Retention of the results is a very important aspect and kindly do not neglect it.
Do reach out for further queries/clarifications/guidance.
Regarding follow up:
Kindly share the final positions of the new scans (version 3) in all aspects. (Front, top, bottom, right left), avoiding the mid and initial positions.