Is there still going to be a part 2 to this? News says next event is Return of the Dragon Princess and nothing about MCs.

I bought Dorania and Echidna (seems like that was a poor decision if I can get a full CR Echidna from next weeks event?).
I've got 272 MCs left, should I get Aria now just for my collection and save the rest for whatever the next MC event is? Hopefully I don't have any issues getting Fleur from the next event to get Anya.