This airport will resemble Changi airport. Same architect.
Actually I will beg to differ - the resemblance is not really all that similar. This is a common misunderstanding. She did design Changi 3rd terminal and also designed the refurbishments of Changi terminals 1 and 2. They don't look similar to Dhaka's 3rd terminal. The only superficial resemblance is because both are airport terminals and are functionally similar.
This is Changi terminal 3 Exterior
This is Changi terminal 3 Interior
And you have seen Dhaka Terminal 3 renders I'm sure.
The architect team was led by Rohani Baharin but she also designed Islamabad, Ahmedabad airports and many other major airports in India, Fiji, Seychelles, Mauritius, Maldives, Philippines, China, Cambodia, Brunei, Myanmar and Vietnam.