According to the post, the phone sports a 5-inch full-screen display, with minimum bezels. Continuing with its legacy in this area, it has recently come up with Exynos 9810 SoC, which is anticipated to be the chipset for Galaxy S9 and S9 plus, whose predecessors S8 and S8 plus were based on the Exynos 8895 processor, on which E 9810 appears to be an absolute victor. However, Samsung themselves have not confirmed this.
And also, in a related development, Samsung has opened a dedicated support webpage with the same model number (SM-A530N) in its home country South Korea, further giving credence to the Galaxy A5 (2018) existence.
If previous Galaxy A7 and the A5 series launch pattern is taken as any indication, the new models are expected to make their debut in December 2017 or early January 2018. Samsung hasn't added the curved display on to any of its other lines of products, so it's likely that this new device will be added to the S line-up. And whether or not Samsung will also include the Infinity display on all three devices or not, we will have to wait and see.
Smartphones with larger size screens between 5.5-inches and 6-inches seem to be most popular. Though the listing mentioned the Galaxy J3 (2018) to come with single SIM support, we will be seeing the dual SIM variant at least in Asian markets. Although, both the device would not have the curved edge but, with an nearly bezel-less 18:9 display. We'll certain stay on top of this subject, and as soon as more information is available, you'll be able to find it right here!
Under-the-hood, it is said to house Samsung's proprietary Exynos 7885 processor backed by 4GB RAM.