well I for one think the PROBLEM with Mario is they are trying new things all the time, what teh NEED to do to regain peopels confidence is to make it MORE LIKE THE OLD!
They need Goobas, they need Mushrooms, they need parahna plants, Yoshis, Fire Flowers, Invincible Star Men, Toads, BRICKS!, Gold Coins, Koopa Troopas, Bob Ombs, levels that actualy have real platforming, etc.
Plus BOWSER needs to be SCARY again. Not like evil incarnate but he needs to make your heart skip a beat when you first see him, it HAS to reclaim the magic that was lost on the last 2 Mario latformers, Mario 64 was pretty damn good but itw as still lacking in so many areas.
Oh and Pipes of coruse. The game needs to be mroe open than Mario 64 or Sunshine was, and tehy need to do away with jumping into paintings or splatches of paint or other stupid stuff and make a world youc an travel form level to level liek Mario 3/Mario World/Mario RPG all had. Thats what i am loking for and if its some totaly new experience that doesnt have ANYTHIGN at all to do with mario not only will I hate and boycot it but so will allt he other old school gamenrs who hated Sunshine for same reasons.
Mario needs to get back to his roots and stop trying new things.