So who would likely be J-35 customers? Finally US will likely sell its F-35 to gulf countries, now since J-35 is exhibited. Apart from Pakistan which other nation might be interested? Thailand, Indonesia, Malaysia, Algeria, Bangladesh?
I think the following countries may want to buy the J-35. Key word being "may".
1. Egypt. There are talks about buying J-10CE already. A new 5th gen plane will certainly spark some interests.
2. Morocco. Their F-5s and Mirage F-1s will have to be replaced at some point. And China had sold them things like HQ-9s before.
3. Armenia. If Azerbaijan buys the TFX, Armenia may want to counter that. Though I doubt if they have the money to afford too many airframes.
4. Serbia. Given the recent SAM and drone sales, China may be able to sell them some new fighters as well. The main issue is again, money.
5. Thailand. The key issue this time is political will. That again, China is a major supplier for the Royal Thai Navy so I think it is possible for Thailand to show some interest here.
6. Angola. The issue is mainly money, though China can certainly accept payments in oil instead of cash. Another problem is that Angola may not need such a jet yet.