To have such a vote of no confidence to adopt must be a majority of Members of parliament (76) for that motion to vote. What is crucial here is what N-VA does. The other opposition parties have already indicated that they are going to support it, but without N-VA, there is no majority for that motion to approve.
another thorny issue is the budget, which also on Thursday for a vote. N-VA left the past few days means that they would not support it. However, it the budget, the commission is already good. That means that the government is in principle nothing more you can do.