Hello Sony,
First i will say that I love Sony Xperia 1 series for many of its qualities. Al the models before the xperia 1 mark 6 had many problems. However for the sony Xperia 1 mark 6 many of the problems had been solved.
New improvements and old strengths: Xperia 1 mark 6:
1.New aspect ratio 19.59 is amazing
2. Ltpo 1080p display is amazing
3. Vapor chamber is amazing
4. Software optimization is slightly better.
5. Much better battery life is amazing
6. Design is amazing
7. Side fingerprint sensor, best in the market
8. Microsd support amazing
9. Near stock android is amazing
10. Amazing cameras
11. Flat display is amazing and should be kept.
I will however still not buy it and many people will not and i will state the reasons. However if improved i will definitely buy it and many more will also.
Reasons:
1. Top and bottom bezels are very intrusive and should be removed.
2. As a flagship it should have atleast 6.7 inch display with no top and bottom bezels.
3. Software integration and optimization should be better for further decreasing heating during usage of comonly heavier tasks.
4. Should have atleast 4 years of os support.
These are the main issues to improve for me to buy and most people.