I'd release MvC2, UMvC3, Darkstalkers 3, Power Stone 2, CvS2, Project Justice, and CvT with the best netcode I could possibly muster, probably for something like $15-$20 each, and see which ones do best vs expectations, at which point I'd do a budget scaled sequel - so if CvS2 does the best, I'd do a sequel which could still stay within budget given the actual magnitude of playerbase.
Of course, if I was being purely into what *I* want as someone who likes Capcom fighters, and not a businessperson, I'd release an AAA Capcom All Stars with the following roster:
Ryu
Chun Li
Juri
Q
Leon
Wesker
Nemesis
Dante
Vergil
V
Nero
Megaman
Zero
Tron Bonne
Dr. Wily
ProtoMan
Jedah
Morrigan
Felicia
Hsien-Ko
Batsu Ichimonji
Akira Kazama
Hayato Kanzaki
Edward Falcon
Ayame
Asura
Zack & Wiki
Vanessa Z. Schneider
Haggar
Poison
Cody
Amaterasu
William Grey
Viewtiful Joe
Firebrand
Frank West
Arthur
Strider
Phoenix Wright
Wayne Holden w/ VS
Monster Hunter
Vertical Tank
The Arisen
Regina
Nathan Spencer
Samanosuke Akechi
Nobunaga Oda
Date Masamune
Tessa
Sissel
Gene
Harman Smith
Nina
Frank West
3v3, with the same active tag system as MvCI. I mean, if I'm being unrealistic, why not go all out?