A 62-year-old man arrested on suspicion of perverting the course of justice following the disappearance of a Newbridge man has been released on bail.
Officers are continuing to question a 27-year-old on suspicion of murder.
24-year-old Kyle Vaughan was last seen at the end of December.
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Paul Flynn, MP for Newport West, will open the debate in Westminster Hall.
It will represent another boost to the region, after the announcement Deca Sealand was chosen for a repair hub for defence aircraft.
The Welsh Government says it will enable more than 3000 new students to study healthcare related courses across Wales.