BNP, Jamaat, NCP can all agree that it is in their best interest to keep AL away from Bangladesh as far as possible. Most importantly AL is now clearly a threat to Bangladesh's national security.
Salahuddin mentioned about AL's trial as a party and they should get it done quickly. Some regional AL leaders might get rehabilitated, especially since local government elections don't require party affiliations. These people will eventually be absorbed into BNP/Jamaat/NCP depending on the regions they operate in, along with their voter base. Even in Gopalganj, there was around 40-45% turn out in the general elections this year, so the process has already started.