There are two posts, so far apart in separate threads that they can be easy to miss, so I link them below. Basically, they know some re-balance is needed, but want to tread carefully because of all the investment players have made in troops. I know skeleton was being talked about by us players in the thread, so I bet its on the list, on how it can be nudged without destroyed.
Buried in another thread is this comment:
Sirrian noted that there will be some look at where stats need to be balanced.