Samurai Showdown. Yes. ... Voltage Fighters: Gowcaizer ... Maybe--Although the Anime Movie based off of it was awesome because it had big-breasted high school anime girls naked.
It'd be kind of retarded for them to release "Metal Slug" on the virtual console with "Metal Slug Anthology" out on the Wii.
"Blue's Journey" would just piss me off.
"King of Fighters" series, maybe... But if you like "Samurai Showdown", then you'll love "Last Blade", "Last Blade 2", "Waku Waku 7" and "Garou: Mark of the Wolves" on Neo-Geo. Those games rocked balls.
And if Nintendo moves into emulating Arcade games on the virtual console, I want them to do CPS-1 and CPS-2 system games. (CPS = "Capcom System").
CPS-1 = Any 16-Bit Capcom arcade game that could be easily ported to Sega Genesis. Such as Street Fighter II, and the very first Street Fighter. Also "Final Fight", "Captain Commando", "Cadillacs & Dinosaurs" and "Strider". And a bunch of other games.
CPS-2 = Any 32-Bit Capcom arcade game that's been ported to the Sony PlayStation / PlayStation 2 / Sega Saturn / Sega Dreamcast. This would include more notably "Super Puzzle Fighter 2 Turbo", the entire "Street Fighter Alpha" series, and the "Vs." series (Marvel Super Heroes, X-Men: Children of the Atom, X-Men Vs. Street Fighter, Marvel Super Heroes Vs. Street Fighter, Marvel Vs. Capcom: Clash of the Heroes), also "Cyberbots".
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You probably won't see CPS-3 (Games like "Red Earth", "Jojo's Bizzare Adventure" and "Street Fighter III"), or NAOMI system games.
NAOMI = Pretty much the "testing grounds" for Sega Dreamcast software in the arcades. This would include "Marvel Vs. Capcom 2: New Age of Heroes", "Power Stone", "Power Stone 2", "Star Gladiator" / "Plasma Sword", "Street Fighter EX", "TechRomancer" ... you get the deal.
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I'd like to see a lot of these games on the Virtual Console. But I'm not sure the Wii's memory capacity would allow for storage...