I don't think Obito would have been a pushover had he lived...
Likely that he could have had MS, and POSSIBLY EMS.
Though Itachi says it HAS to be a sibling in order to get EMS.
But I also think Kimimaro would have been an excellent character to develop, I thought he was such a badass. He could have even been low Kage level in his prime with no sickness seeing as Kabuto brought him back due to "fame" and having even directly worked with him to know his abilities, also the fact that he was never successfully sealed. I was hoping to see something fancy from him.