I'm going to highlight 3 things:
1. Currently RMGs is the bulk of our exports, its essentially low to semi skilled work, combined with being labour intensive. Bangladesh is the 2nd largest exporter of RMGs with export value roughly $40bn behind China with over $150bn in exports. Labour costs in China are over 5 times what it is in Bangladesh, hence in the next decade you will see china moving out of the RMGs mass production and staying in he high value niche sector.
Two countries are therefore best placed to attract that shift out of China, that being Bangladesh and Vietnam. RMGs sector will continue to grow for several decades in Bangladesh before it moves to Africa (just as it moved from Europe to China, it will move from China to Bangladesh and then from Bangladesh to Africa.) Therefore Bangladesh RMGs industry will continue to grow to over $75bn-$80bn in the coming decades.
2. The main sector that will grow in the next decade is leather. Its a $211bn export market, and like RMGs its a low to semi skilled industry and its labour intensive. So, how big could it be for Bangladesh? Well not not as big as the RMGs market, but $25bn-$30bn by the time it matures.
3. The third big sector that is likely to grow fast in the coming decades is what's known as the white goods market, think kitchen equipment, home appliances, etc. Your already seeing small moves in this sector to move from the local market to the export markets.
So the moral of this article is if you want to see what future holds for Bangladesh, look closely at how the economies of other South East Asia evolved, namely South Korea, Taiwan, Thailand, and to a lesser extent China.
Good post but I think RMG industry will start to saturate in BD by around 2035-2040 as BD becomes as rich as China was in 2020.
Apart from car industry what we are seeing in BD is almost a mirror match of what happened to S Korea during its development phase.
The only industry that BD should be building up and is lagging is shipbuilding and @Bilal9 has commented on reasons why.
BD is in a fairly good economic position now and should focus on getting as many FTAs as possible now. It has no need of quotas anymore that are now doing more harm than good.