As confirmed by size specs from FCC listing, Lumia 530 should have a 4-inch display and less capable hardware than Lumia 630. It may sport a 5 MP camera without flash and may arrive in July-early August time-frame.
Apart from Lumia 530, Nokia X2 has also passed certification in Thailand as RM-1014. Last we reported it passing certification in China as RM-1013.