Was thinking about this the other night, do you think they will increase levels with each expansion, but then start again every two years when a new Destiny game is released? Or keep building up levels with each new game as well as each expansion? As for expansion of game area, I think they will expand on the solar system planets, and locations on existing planets, but then for later games they will go chasing the Darkness back to its origin in other systems in the galaxy/universe.