I'd really like to see a change in roulette bonusses so they stack up like guildleves and you can burn through them all at once if you want, instead of having to do them daily. Maybe cap them at 3 or 5 or something, but just make it so it doesn't feel like such a laundry list of chores you need to complete each day.

And I like the idea of bonus weekends in general, it's a good way of encouraging people to get more involved in gameplay modes they wouldn't usually touch. A general XP/currency bonus would be kind of boring, but things like hunt/PVP bonusses, extra FATE rewards, extra rewards from synced-down content, stuff like that.