The whole thing with roulettes specifically is they are a catch-all that directs players to instanced content within the game.

It is not unreasonable to say the majority of the content in the game is instanced, and the range of those experience is huge. How you cap out one week can look absolutely nothing like how you capped out the previous week. Me? I cap out almost all in PvP, with two different modes having fast queues in prime time. Someone else might just do their expert roulette. Another person might raid. Maybe someone just does half of the roulettes available every other day of the week. We are all getting capped out.

When they add stuff, most of it will be instanced, and almost all of it will be in roulettes. Your tomestone generators are right here.