Very much so.
If we look across the pond to Brexitstan, we see 1930-70 models having held sway from that time to the present. Flying Scotsmen, GWR 4.6.0s and any amount of tank engines all over the model shops. You don't think wooden four-wheeled trucks were still in traffic.
BR Mk 1 and (early) Mk 2s still rolling off the production line.
This is nostalgia-driven.
However, people don't fully KNOW the nostalgia here. Apart from the almost total dearth of railways north of the Sligo line and all over the west, there was never the level of interest here "per head" as in Britain.
i firmly believe this is changing. There is growing awareness even on this board of things historical, and the many books with good pictures of the "grey'n'green" era ave helped. When I pored over the black and white pics in Colin Boocock's book in the 1970s, it was the only "picture book" of Irish railways available.
More commercial models will, absolutely without doubt, generate more interest in this fascinating period. Half a dozen particular prototypes replicated as models would, I remain convinced, act as a huge catalyst.