I don't think there will really be any new and exciting benefits, although I hope I am wrong. It would be nice if they expanded the in-room gift options (prosecco, fruit, or chocolates currently). I do like the earlier booking times because the Platinum level has so many people now.
With so many Wish concierge rooms, it is difficult to get adult dining reservations at times, even at Platinum, with so much competition. Hopefully, Pearl status will help a little bit on there and on the Treasure.
Regardless, I still want to achieve Pearl, like many others, so DCL will accomplish what they are trying to do. More sailings booked by those of us wanting to climb up the ladder. I booked 4 cruises in the next few months - a B2B2B and added a short cruise from San Diego since I live here, and it had a great military discount. I am a sucker, but I can't beat some of the military discounts they offer and I love being at sea. Win-win.