"We may end up with a one-day event and racing without a practice session which will be challenging for sure."
Walker heads a 10-strong New Zealand elite team, joined by 2016 junior world champion Maynard Peel and current national champion Cody Hobbs in the elite men, while national champion Rebecca Petch and Zoe Fleming round out the elite females.
Four Hamilton club riders are in the junior elite team with Jessie Smith and Baylee Luttrell in the females while Cailen Calkin and Ryan Jordan join Kapiti's Luey Cotton in the males.
Walker said riders had been adjusting their lifestyles to fit with the late racing schedule.
"We are racing from 8.30pm to 11.30pm, so I've been getting up late morning and going to bed after midnight. It does feel a bit weird to be eating breakfast when everyone else is having lunch."
She was buoyed by her recent form in Europe but not looking too far ahead at this stage.
"My speed at the world cups was really good and surprised me a bit that I was really competitive in that respect. For me I am just looking at executing my plan, enjoying things and having good clean runs.
"It is just a start back for me and will be interesting to see how competitive I am."
She has a double interest this time with Smith, who won a world title in her final year as a Challenge class rider, stepping up to elite juniors. Walker has sponsored the Hamilton rider for some years and has taken her under her wing.
"It's been good for us both, being able to train together and hopefully she has a strong championship."
