Wilson's troops beat Wairarapa Bush 21-17 and Whanganui 28-0 and lost 28-19 to Taranaki after trailing 28-0 at halftime in pool play.
They lost 35-7 to Wellington in their first playoff outing before losing 24-12 to Taranaki in the playoff for third.
Hawke's Bay's fourth placing was one spot below last year's third. However Wilson only had four players, Scott, Ricky Hayes, Cole Eru and Trent Hape, back from last summer's campaign.
"We've still got plenty to work on and we intend to use the Mount Maunganui tournament on January 6 as our final rehearsal for the nationals. While we were happy with our defence it's important we reduce our turnover count and we will do that if we eliminate our mistakes and loose carries," Jones said.
Hawke's Bay's women also qualified for Rotorua with a third placing in their five-team competition, where the top four qualified. However co-coach Joe Heather admitted there is plenty of work to be done if his side is going to improve on last summer's bottom placing in Rotorua.
Hawke's Bay lost 31-0 to Manawatu and 22-5 to Wellington before beating Poverty Bay 17-15 and Taranaki 34-14 in Levin. Heather agreed their scrum is a major work-on.
"Felicity [halfback Powdrell] was taking a pounding behind the scrum before we got some tips off Ellery [Wilson] and they helped. We have a lot of youngsters who need to be brought up to speed with what is required in sevens but there is a lot more interest than we had last summer and our players are keen to embark on the pathways available to them."
Former Aotearoa Maori Sevens rep Julie Ferguson-Ngawaka, 40, and the promising Niamh Jefferson were able to compete with the best of their opponents. Prop Hope Hakopa proved she had progressed well since last summer.