Eventually, yes. Once it's introduced as its own class and depending how long it takes AA to get its IT ducks in a row (to allow award bookings). But that's a ways off still, until there are more PE equipped planes. For now, they'll just be sold as MCE, which is why I find your question a bit odd. If you want a bulkhead, go for row 9 while you can, don't even bother with 12 or 24. (Unless you're flying after February.)