I think that is what WWE wants...... consensus on Charlotte was that despite her in ring talent she wasn't connecting the audience, not well embraced as a fan fave, fairly average response as a heel, there was a real sentiment that while Divas Revolution has had its ups & downs Charlotte really hasn't gone anywhere despite a fairly big push (which many ppl ignored and attributed not to her talent but to her name and her father's status). Having Ric around draws immediate attention to her, and as she is subtly altering her character a bit to be more like him it gives her a fresh storyline, which she needs as Divas Revolution is largely dead now and WWE scrapped the whole "For My Brother Angle" due to massive fan backlash.
Plus, WWE has tried this before, using Flair as the catalyst to get Batista & Randy Orton over and credible with the audience, which in both cases it worked well.
Finally, its the run up to WrestleMania - WWE is going to have every hand on deck who could spark even tiny interest in coming on board and helping. They are still courting The Rock, don't be surprised if we see more appearances by the likes of HBK, Nash, and few others in the coming months, you know HHH & Taker will be featured prominently post Christmas Holidays as we head towards (and especially coming out of) The Royal Rumble. I wouldn't be surprised if by mid February RAW looks like Nitro & RAW IS WAR merged circa 1998 with the amount of legends running around!!
Also, lets not forget the behind the scenes corporate angle, yes WWE is making a serious effort with the Divas and Charlotte, yes they want "all hands on deck" in some capacity heading towards Mania, but WWE also just signed a major promotional deal with ESPN, and right after that deal was announced it was also announced that WWE had finally green lighted the ESPN 30 for 30 special documentary on Flair, which they had been trying to do for over a year but WWE was reluctant to let them use Flair's match footage for fear the program might be too critical or bash WWE/pro wrestling too much. The Flair special stands on its own as a ratings grabber for ESPN, but it certainly helps burnish both parties if Flair is still being used in some meaningful capacity on WWE programs, on screen manager, public ambassador signing autographs & doing promotional appearances, etc. This may not be the biggest reason why Flair is back in regular storylines, but I bet you serious money its one of the reasons.
In the end, if Charlotte actually gets a new storyline and continued push regardless of anything else its good, and if Flair can actually add some charisma and character enhancement to her to get the audience to care about her, even better. That last point will depend largely on her though, Batista & Orton had serious talent, they just needed a jump start to break from the pack of bottom tier newbies and it worked, WWE had Flair work with Carlito a lot too but he didn't have the talent or ambition to succeed like the other two, and that partnership other than producing a few nice matches didn't produce much.