1. The Awami League's most important concern is power.
They are politicians. There are apparently more rezakars in the Awami League than in any other party. The AL are also more unscrupolous so things such as war crimes, banning Jamat etc all come second to the "need" to be in power.
Thus I am sure they have done their calculations and realized that banning Jamat will ultimately increase their popularity/vote show and win the next elections.
2. Whatever they do, I doubt it will work as I have been informed by my sources, that the BNP (barring a coup) will form the next government.
You are underestimating the power of corruption.The corruption that i am talking about is not the one that is done by officials but a more subtle and omnipresent and omnipotent type which is corruption of character which large swath of population suffers from.
Indian politicians have fine tuned the art of bribing voters with mixer grinders and laptops for votes.
AL could bribe it's way to power and is well placed to do so also as it do not have a right wing/urban middle class/conservative vote block to pander to.
Also because of the very reason that AL is power hungry,i believe that nothing would come out of this banning ordinance.
Jamat has several benefits for Hasina.
1.It keeps right wing block divided.Even when fighting as a coalition,it is difficult for supporters of a party to vote for another one.
2.Jammat could become a source of highly motivated cadre which would be licking it's would and would be highly dangerous.
3.Jammat's funding source would become part of BNP thus increasing it's war chest.
4.Jamat provides a cause-celebre for AL.With jamat gone it would lose an important emotional rallying point.
5.Jamatis would provide muscle to BNP at national level.
Thus it is highly doubtful that Sheikh hasina is serious about banning jamat.She probably is trying to test waters and engineer an schism between BNP and Jamat by forcing BNP to take stand against them.
3. Jamat are an evil organization hated in Bangladesh and even by some/many in Pakistan. So banning them will be seen as a great victory and in continuation and in the spirit of the 1971 war. Bangladeshis all over the country will celebrate this.
Politics is not done by emotions.
4. The BNP is run by sensible people who have more freedom to be flexible in dealings with India as they do not carry the stigma of being "Indian-dalals" which the Awami League has. I am of the opinion Bangladesh-India relations will continue on the trajectory they are on now and we will have a healthy trading relationship with each other.
Unless someone has communal reasons,it is natural for Bangladesh and India to have a healthy relationship.A lot of stuff peddled on this forum is insane bullsh1t.A year ago some poster has started a thread regarding "Whether Bangladesh should try mineral exploration as India is turning BD into a desert" while ignoring that Bangladesh receives rainfall of the magnitude of equatorial rain forest and thus cannot be converted into desert even if India stops all water and mineral exploration is pointless for Bangladesh as it's bedrock is buried under miles of alluvial soil.