Stena Embla which is a new ship destined for the Belfast - Liverpool route has been filling in on the Rosslare - Cherbourg route to increase capacity before entering service on the Belfast - Liverpool route. The Horizon is currently undergoing maintenance but we could see a longer term switch to a bigger vessel.
Meanwhile, its sister ship the Stena Estrid, which has been doing Dublin - Holyhead for the last year, is now penciled in to do a new weekend Dublin - Cherbourg route, this is a big upgrade for passengers v's the Horizon and a proper alternative to the WB Yeats if more onboard facilities make it a better journey.
https://www.rte.ie/news/busine…it-demand/