A few months back, I probably would've had little to no interest in Mickie returning to WWE. After all, she'd been such a generic, one dimensional babyface for so long that I just didn't really care about her. Also, it's not as if WWE doesn't have enough hot looking women with lame personalities to do little more than run around in skimpy outfits.
However, things have changed quite a bit over the course of the summer. Mickie James turned heel a while back and has been doing the best mic work of her career. She's a flat, dry babyface but she's a surprisingly charismatic & personality driven heel. Frankly, I didn't know she had it in her. As for the Divas, while not spectacular as a whole, it's fair to say that the WWE Divas Division has made some significant progress spearheaded by AJ Lee. We've seen some of the Divas get some solid time for matches rather than just 90 seconds of nonsense, though that does still happen sometimes. They're also actually putting storylines and feuds into the Divas Division now. They're not epics or anything, but they are compared to what amounts to having random women come out to wrestle random matches for a few minutes for no other reason than to fill some air time.
At the same time, however, Mickie recently turned 34 years old and WWE's recruitment strategy, as a whole right now, doesn't indicate any real interest in reaching out to older & more established wrestlers. Guy like Jericho & RVD are two exceptions as they've both been major names for a long period of time who've maintained relevance and popularity.
Then again, aside from Trish Stratus, Mickie James is easily the biggest female star in pro wrestling over the past decade or so. People will remember her in WWE and she's still got the goods both in terms of her looks, her in-ring ability and with the recent discovery that she can be more than a dry, one dimensional character. Women in WWE don't have to contend with remotely the same level of wear & tear the male wrestlers do, due in no small part to WWE essentially booking them as little more than fluff in sexy outfits for years upon years. It's a strategy that WWE seem to be pulling away from, especially when looking at how things are run down in NXT.