I'm not immensely pleased with the new Madara, either. I just wish he had possessed a few more bits of that Madara (Jonin, Rinnegan, I couldn't really hope for Tree, but it's accurate). Still, his effect is useable, if you want to use HIM to see it happen; I just don't particularly want to use this Madara.
As for Rinnetobi, I wholly don't expect anything like this (I'd say "this good", but then I'm biased, and who knows if anyone else thinks it's good?), but I would REALLY love to see something that resembles this little jewel of mine
(beware, potential spoilers, if you haven't been reading). It does Rinnegan the way I always thought it should've been done, giving the chakra flexibility the ability has, but the Void cards lack, other than dual-or-more elementing the deck, and is a powerful ninja, besides. He also hearkens back to Man of Mystery Tobi, one of my all-time favorites. I even gave him a jutsu that fits
(again, possible little spoiler, but fine if you looked at the first one). I bet I'll remain disappointed, but the fact that they finally started giving Tobi Sharingan was enough to make me look past a few disappointments.