A lot of foundation
I am a fan of platformers in general, so I may be a bit biased. However, I think that there is potential in the game. I would definately like there to be a point system of some type. Examples would be: a bonus depending on how quickly a level is beaten
coins or something of the sort to collect through out the level,
special items that give you a lot of points but are more difficult to get
ect. Also There should be more ways to die, even discluding AI. There could be the risk of platforms crushing the character and all other sorts of challenges. This is just a random thought, but if there are enemies, could the main character have a weapon of some sort? Well, the only ther suggestion I really have is one that you undoubtably have already thought of, but I will mention it anyways. I would personally like for the finished game to have a final boss. Well, I definately look forward to the making of a new platformer =)