Army rule is ok as a caretaker govt. (CTG) for 3 months max to ensure free and fair election. But if Hasina does not accept CTG and hold election, BNP-Jamaat 18 party alliance should boycott this election. Public in Bangladesh need to get sufficiently upset and angry with Hasina's misrule, so Hasina's coming back to power in a sham election is essential for this to happen.
If and when the public is angry enough, in 1-3 years time, the field will be ready for a spontaneous revolution, sparked by some incident and helped by opposition activists. Only after such a spontaneous mass revolution (perhaps with the help of facebook, twitter and SMS text), the Army Jawans (without consent of pro-AL officers) can step in and prevent massacre by AL cadre and Police.
In that situation, like Egypt, we will be able to raise the slogan:
The Army (Jawans) and the People are one.