If we change our orbit to get further away, we'd need to increase our forward velocity, right? By doing that, we'd change the length of the year. Would it be possible to achieve a stable orbit so that the increased speed is offset by extra distance from the increased orbital radius? I'd really hate to have to learn a new calendar system.

Also, would the mass of Earth gradually moving location in the solar system disrupt other objects like say maybe something in the asteroid belt? Would that disruption then start a chain reaction of other objects having their orbits perturbed to the point we've no unleashed a new season of asteroid danger? What about the decreased distance to Jupiter? Big boy will have some strange affects on earth too would he not? Would we lose our moon to the pull from Jupiter? What happens to our tidal systems at that point? Would the loss of the moon be countered the new tidal pulls from Jupiter?

So many questions