With ships offering so many dining choices, it can be a challenge to try them all in a week, Royal Caribbean has decided to scrap the concept of having main dining rooms in its upcoming mega ships in favor of five smaller themed restaurants. There will be no extra charge in those eateries and there will also be new specialty restaurants with cover charges. They include Jamie’s Italian, developed with celebrity chef Jamie Oliver and Michael’s Genuine Pub done with chef Michael Schwartz. The 4,180-passenger Quantum of the Seas will enter service in November, sailing from Bayonne, N.J. Sister ship Anthem of the Seas will sail in the spring of 2015.