"Obviously they'll be a loss but Scott Kuggeleijn bowled well [in Hamilton] and we've got the experience of Graeme Aldridge coming into the squad and I think James Baker might be the other seamer to replace Timmy and Trent," he predicted.
He said there is good depth in the squad but Otago will be a tough proposition - particularly with Jesse Ryder heading south and in good run-scoring form.
"We've got good momentum in the competition," he said. "But now it's going to be the real test where the senior players have to stand up and the younger players have to come in and contribute as well so we can do the job," he said.
The Kaipara Flats opener hopes to bring up 3500 first-class runs for the Knights during the match and believes the ground is underused at the that level.
"We don't get as much cricket in Whangarei as I'd like. We only get up there once or twice a season and it's a shame because it's such a great ground with great facilities. But it's also good for people in places like Gisborne to have first-class cricket to watch because they're passionate about their cricket too," he said.
Wilson said it would be strange to return to Cobham Oval as the only Northlander in the team.
"It's a while there hasn't been a Marshall in the team [referring to brothers Hamish and James], so there's a bit of a changing of the guard at the moment," he said.
The match starts on Wednesday and is scheduled for four days.