It seems we are getting a new model in the Galaxy A family. The Samsung SM-A430U has just arrived on Indian shores on 2nd May for testing and it may just be the new Galaxy A4.
Samsung generally names phones in its A series as, the Galaxy A3 A310F, A5 as A510F, therefore we can safely assume that the Galaxy A430U will be called the Galaxy A4. Now, the price we can see in the import listing on Zauba suggests that it will cost Rs. 31757 (about $477) seems a bit high considering the Galaxy S7 2016 is currently retailing for under Rs. 30000 in India.
Although the pricing doesn't seem to be accurate, the phone is being tested in India.