Where is this train coming from?
If this early train from Longford means they keep the 1805 from Connolly in Longford overnight that will an excellent addition. Before they extended the early train from Longford back to Sligo, they used to keep two trains in Longford overnight, so I can't see why the shouldn't do this.
The 1905 gets stuck in Mullingar for at least 10 minutes every evening waiting for the 1805 returning empty from Longford so that would help enormously.
It could also mean a couple of extra cars for the 1805 which would also be a big help.
I can't see very many takers for the new early service but it is better than runing it up empty the night before. The earliest Longford service seems to be very lightly used at the moment.