I think a shift from road to Rail freight is important. Given that more sea freight goes through Rosslare, much of this container traffic should be via rail. Therefore there needs to be a distribution yard in the environs of, probably, Connolly Station.
As for containers that arrive either from Rosslare or from Dublin Port. In many cases these containers need to be split into different loads for different destinations or be transferred to smaller vehicles, and this requires a distribution yard(s).
Until comprehensive plans have been finalized for distribution yards for rail and sea freight, no land in Dublin Port or the CIE lands near Dublin Port, should be released for development.