We need to bring the Bangladeshi private yards into this, Western Marine, Ananda, etc. By building more naval vessels in Bangladesh we will a huge adrenaline shot in the shipbuilding industry.
In the near future Bangladesh has to design and develop their own corvettes, maybe as a joint venture with China and other friendly countries. One option could be to build the next 2 corvettes in Bangladesh, then co-develop a more advanced corvette based on the type 056, jointly with the Chinese.
A very small step has started, Western Marine recently laid the keel for the first naval vessel for export, a OPV for Kenya.