I'd kinda like to see a layout collaboration of different series that are popular/wanted/win. Such as (looking at votes currently) a layout consisting of Sailor Moon, Dogs, and Kaicho u no Maid-sama.
Also, it'd be nice (in my opinion) to stay away from layouts of just one series, or of series that have a group on MT (such as Gundam SEED, Katekyo Hitman Reborn, D. Gray-man, etc.) But of course, it's only a suggestion <3
Personally I'd like to see a series that isn't mainstream or something like Persona 4 (which I guess would be my vote outside the 6 listed haha)