"Hij heeft geen trainingsschema". He's got no training plan, no training programme... That's indeed what father Adrianus is saying in the video. He's saying that Mathieu would still train in a playful/amateur way for two years and hopes he could get to the road afterwards but combine it with cyclocross. He wants his son to show that it is possible to do it.
Edwig Van Hooydonck seems to regret that such a talent just contend with cyclocross and mountainbike. Nice to see that Edwig has lost weight since he claimed to abstain from eating fries.
By the way Mathieu upcoming calendar in mountainbike is known: http://www.mountainbike.be/nieuws/detail/algemeen/20160313-mathieu-van-der-poel-gaat-resoluut-voor-olympisch-ticket
Pearl Izumi Cup in Beringen, April 10
Cairns, Australia, World Cup, April 24
BeMC Mountainbike Challenge, May 13 to 15 (3 stages around La Roche-en Ardennes)
European Championship in Husqvarna, May 8
Albstadt, World Cup, May 22
La Bresse, World Cup, May 29
World Championship in Nove Mesto, July 3
Unfortunately, the Tour of Belgium is not on Mathieu schedule since it clashes with La Bresse. Or well, let's assume that Mathieu gets top6 in Cairns, he might reconsider this.
By the way, the article suggests that Rudi van Houts would be the most likely first selected in the Dutch field but I thought that the Dutch #1 in mountainbike was Michiel Van der Heijden?