by EuroStar
It has been known for a while that the tunnel requires extensive work. To the best of my knowledge no contract has even been bid out for that work. The Andover station has also not been bid out, so there is no way that they will get anything by the end of 2020 even if they tried. If they tried hard, maybe 2022, but NJT has so many higher priority issues to address that there is no way they can dedicate meaningful resources to this.