I was in pretty much the same boat last season. Promoted to DIII. Selling out every game. The aura of promotion is still heavy with his fans. For me it seemed to wear off right around the date of when you could change ticket prices. It seems to gradually fade as the season progresses. As a team of the exact same country and level of play freshly off a very similar experience, I just heed caution before jacking ticket prices. If he does increase ticket prices for the balance of the season, I would definitely lower them prior to the start of next season unless of course he was to promote to DII.