Took this screenshot from the new trailer; reveals what is shared between PSO2 and NG
It should be mentioned that characters are shared between them too - you'll be able to use them in both PSO2 and NG. How are characters shared, exactly? If"character development won't carry over", that sounds just like you can have a character with the same name in both matches, but I wouldn't predict that shared. That is what they said. I'm presuming you get to Phantasy Star Online 2 Meseta...