Actually, I think it's almost guaranteed that Fire Emblem: Path of Radiance and F-Zero GX would get release on a VC service with GameCube games, Nintendo has been very good with releasing even obscure games on the VC.
See, having Ogre Battle 64 on the service makes me
want to agree with you, but I just can't in good conscience while we still don't have Earthbound, Illusion of Gaia, Terranigma, Lufia 2: Rise of the Sinestrals, etc. on the VC.

Yeah, there might be something of a theme there.
Fire Emblem is a toss-up, because it didn't really use any special GC features and it is a series strongly tied to the Smash Bros. franchise. If Nintendo of America could OK OB64, I think we'd be very likely to see Path of Radiance on the Wii U. I'm not so sure about Eternal Darkness, as it's not an IP that even Nintendo of Japan has shown they altogether care about and it never sold all that well. The games I think we probably wouldn't see are the likes of the Lost Kingdoms games, the Baten Kaitos games (based on NoA refusing to localize any Monolith production since BK Origins), Skies of Arcadia Legends (Sega's an idiot when it comes to getting good exposure for their franchises), the two SW: Rogue Leader games, etc. We could see Tales of Symphonia, though, since that has been historically by far the most popular game in that franchise.
So yeah, pick up the games you want to play, and if they show up on the Wii U Virtual Console, so much the better. You're already set, and will likely have paid less for them than those buying the VC versions. The only real downside is that Nintendo might code new Classic Controller Pro support or whatnot into the VC versions. Actually, I really hope they do that. My Wavebird just isn't as comfortable to hold now as it was back in the day.