Oh hey! This would be an excellent place to look for an answer to one of my long standing questions. So... the whole deal about the radioactive/dancing bananas - is that because of the banana resource in civIV? I seem to recall it might be something like they bothered to animate the little bananas in the tree + basket - the heavy focus on graphics. Or of course it may be an entirely unrelated meme, I was just wondering.
As for actual civ5, I don't particulary care to have any more graphics than we have now (in fact, civ III levels were fine for me - only the movies/leaderheads really seem like much of an advancement). Mod-ability, a good interface, and transparency for the player to actually be able to get at all the info they want (and should have) are 10x more important.
And finally - I'd think a remake of civ into civ5 still sounds not nearly as exciting as a remake of SMAC - and I've never even played it, only heard about it. Still, we can always dream...