City exceeded all expectation as they reached the third division play-off final before losing out to Bournemouth in Cardiff, and Bradley is confident of another good season
He told the Lincolnshire Echo: "After the season we have had there is a lot of optimism about the place, not only from the board but also the supporters.
"The whole atmosphere at the club is positive and there is no reason why we should not exceed 1,000 season tickets for the new season, which would be a great achievement."