"Nothing is guaranteed, it will all come down to how well I play and whether there is a spot for me to fill," he said.
"The big thing is to give it a decent crack and see what happens."
Van Vliet is unfazed at the prospect of perhaps having his brother standing in the way of his making the Netherlands side.
He said that while the two of them were openside flankers they had different body types with Huib having the edge in height and himself in weight and, consequently, they had different skill sets as well.
"We don't see ourselves necessarily being in competition, we'd like to think we can both slot into the same side no problems."
Just how long Johan Van Vliet remains overseas will depend on a large part on where his rugby takes him but present intentions are for him to return to Eketahuna in time for the start of the 2014 club season.
And that being the case he would be keen to continue his involvement with Wairarapa-Bush in the Heartland championship as well.
"We do have a bit of unfinished business there, third was a good effort but we can do better," he said while reflecting on their latest Heartland campaign which ended with their 48-34 loss to North Otago in the Meads Cup semi at Oamaru last weekend.
Van Vliet believes the pressures that always go with a "must win" game could have been the main reason for Wairarapa-Bush facing a mammoth 31-12 deficit at halftime.
"Maybe we were a bit uptight for starters, we made a few simple mistakes and they capitalised," he said.
"It said a lot for the boys that they came back so well in the second spell, they fought hard right to the end."