I want to know if Peter can do everything Matt can do, or if he's still limited to reading minds. Can he create major illusions, trap people in their minds, force them comatose, and telepathically send them messages? I mean, he did come in contact with Matt, and we know Matt, Maury, and Candice at least have the same potential abilities. Not only that, but telekinesis is in the same bubble, too, so when Sylar gets his abilities back, will he potentially be able to demonstrate the same things Maury has? He does have telekinesis and all that.
Then, of course, I want to know which abilities are related this way: Is flying a type of telekinesis, therefore part of the mental control powers? Are the muscle-mimicking powers and the ultra-memory powers on the same base? To that effect, how does super-strength fit in? Is it on the same branch as advanced muscle memory? What group does Molly's powers fit into? If I had to guess, it would probably be the same group as foresight.
Electricity would either be an aspect of telekinesis, or would be an aspect of transfering molecules, like DL's abilities. I think D.L.'s abilities are closest to Hiro's, honestly, so they may fall under the same branch.
Of course, Clair and Adam/Kensei have the same abilities, but we now know that they could develop the type of healing that Linderman possessed, too, since we know that the ability that initially manifests isn't the only ability possible. Anyways, if you didn't read the first question in the link I posted above, you should be at a loss to what I'm talking about, so get to work on that!