Isn't one of the key strengths of match-3 type games their simplicity? You can understand and play them in seconds without having to make a significant investment of time, effort or thought; they're casual games for casual gamers, in other words.
The risk would seem to be that adding layer upon layer of extra functionality and complexity might dilute the appeal, effectively undermining the fundamental strengths and aformementioned appeal of match-3 type puzzle games. It sounds like you're trying to market a match-3 game to World of Warcraft players, which is either an act of genius or folly. I think that it's the latter, but I hope that it's the former.
The risk would seem to be that adding layer upon layer of extra functionality and complexity might dilute the appeal, effectively undermining the fundamental strengths and aformementioned appeal of match-3 type puzzle games. It sounds like you're trying to market a match-3 game to World of Warcraft players, which is either an act of genius or folly. I think that it's the latter, but I hope that it's the former.