Tradeskill changes are a'comin'.
MPOGD discusses tradeskills in this interview with Emily Taylor, the new EverQuest 2 tradeskills game designer.
"Major overhaul" is a subjective term, what one person might consider major, another might not, so this is a difficult question to answer. From my point of view, at this point I am only making changes as needed, but some of the needs are quite large, so that can still involve a significant degree of change. The driving force behind any change varies, depending what it is.