The next Star Trek series won't be pitched at adults and kids because shows are more narrowly targeted than that. If its animated and on the Cartoon Network, it will be pitched at kids. If Netflix, Showtime or most places like that, it will be for adults.
That doesn't mean it can't be enjoyed by other age groups in either case, but the approach will be very different depending on what outlet it is created for. Like I said, it needs to pass the hip-grandma test, no graphic sex. But it can't come off as namby pamby compared with other well regarded shows. Its peer group is cable, not broadcast.
The MU might be a viable setting if for instance it takes off on the post Mirror Mirror story, which implied Spock and Marlena Moreau were going to stage some kind of uprising or guerrilla campaign. Quinto could be Spock, natch, and Moreau could be recast with a Hispanic actress. That will give us our good guys to root for, and the possibility of movie actor cameos playing their eeeevil selves.
Hmm, I'm starting to like this idea after all...