Hmm. Difficult one.
No more Düsseldorf - Arnhem direct trains. You’ll have to change in Emmerich.
But given how unreliable this service has been, perhaps this will stabilise things?

Neue Rhein/Neue Ruhr Zeitung
RE19 ändert Fahrplan: Umstiege in Emmerich seien unausweichlichDer RE19 fährt zwischen Arnheim und Düsseldorf.