According to Dutch website Racesport.nl the 22-year-old, who claimed two WSBK podiums for Pata Honda at Assen this year and will be teaming-up with Casey Stoner and Takumi Takahashi for the Suzuka 8 Hours, was "almost certain" to replace the injured Abraham at his home event.
However, the Honda rider has confirmed via Twitter he will not be racing this weekend at Assen despite making himself available to the team.
Abraham suffered a foot injury last time in Catalunya leaving him unfit to ride his Open class Honda. His AB Motoracing team is yet to name his official replacement with just two days until free practice one of the Dutch GP on Thursday.
It is believed that the van der Mark has been denied a shot at a MotoGP debut due to a disagreement on costs between the two parties.
