To add to my already long wishlist I'd like to see a dual gpu card stage, one Timespy extreme ddr4 all out (multiple gpus allowed) stage, some kind of agp stage, would be cool to see a mobo igp stage as well where apu type cpus are banned. I think that would be basically amd am3/+, and pretty much anything ddr2 or technically workstation or server boards for xeons etc which don't have igp. While we're doing non standard 3d pci is interesting as well, maybe smash them all into a misc stage with no mem limits along with a hybrid graphics stage.
For ddr1 I wanna see socket A, 939, S478, and maybe s775 (no xeon, no core 2)
Ddr2 maybe another s775 non Intel chipset stage or am2 cpu non amd chipset, although those are kinda sadistic even by my standards. Also an am2+ stage with the few phenom II based am2+ cpus banned (or for extra memes allowed), also 3d stages pre Fermi and pre HD 4000 series
Ddr3, one s775 stage, 1366, am3, am3+/fm2+, s1155, s1155 stage as well as the same time frames of 3d gpus mixed in
Ddr4, at least a few stages where global records can be set, some benchmate stuff, 3d on gcn4+ and maxwell+
And of course the classic benches like gpupi (cpu and gpu), Geekbench, cinebench, x265, superpi etc spread throughout