The Latics stunned hot favourites Manchester City 1-0 in the FA Cup final yesterday to lift the first major trophy in their 81-year history.
It was a personal triumph for chairman Dave Whelan, who bought a club struggling in the bottom division of the Football League 18 years ago.
Wigan may yet find themselves back in the Football League next season after eight successive years in the top flight, but Jackson sees a club heading in only one direction.
He said of Whelan: "When he bought it in 1995, we were in the lower reaches of the bottom division and now to win the FA Cup, it's a fabulous journey and it's all down to him. I can't say enough words about what he's done to this football club.
"It's something special and he'll be a very proud man, but hopefully there's a lot more to come. It's been a great journey but this isn't the end of it.
"There's so much to do at the football club. We're improving the infrastructure off the field with a new training ground and a new academy. This is a Premier League club and we aim to stay here."