Residents in one North Jersey town who spent years fighting off a truck terminal now worry a data center could be next. For months, a sign on the 11-acre parcel near Route 3 in Nutley has advertised a 65-megawatt site with zoning approval. The sign has left many locals believing a data center is already in the works, even though town officials say that’s not the case. The uncertainty brought neighbors to Tuesday night’s Board of Commissioners meeting, where they pressed officials for answers.