Although several suspects are due to appear in court in Brussels, nine others are still on the run.
Prosecutors believe the group was run by Abdelhamid Abaaoud, a ringleader of the 13 November attacks in Paris.
He was killed in a shootout in Paris days after the gun and bomb attacks in which 130 people were murdered.
Among those due to appear in court on Monday is Marouane El Bali, 26, who was arrested in the 15 January police raid, in which two other suspects were killed.
Security is tight for the court appearance in Brussels.
At the time of the raid, prosecutors said the Verviers group had returned from fighting in Syria and were poised to carry out an attack.
Two suspects were killed when police stormed the building. It came a week after jihadists attacked the offices of satirical magazine Charlie Hebdo in Paris, killing 12 people.
Belgian prosecutors say the cell had been planning an attack on police but a French special operations commander told media that they had intended to kidnap and murder a high-ranking Belgian official.
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