[quote]Will the new season of the dawn bring a new raid out and make shadowkeep obsolete.[/quote] Very much doubt it. [quote]When I say obsolete I mean will you no longer get powerful gear from shadowkeep events?[/quote] Powerful gear will still be available. [quote]and will I have to buy shadowkeep in order to participate in the season of the dawn activities?[/quote] No you can still participate without Shadowkeep.