Cardia is probably going to both events.

She could use some tips on godhood, and she definitely wants to help save people if she can.

Elise is going to training. She'll tag along with her new goddess though if Lenneth volunteers to help with the suicide thing.

Damn straight.

Hiyoko is investigating suicides. By which I mean she's going to be asking people where they were on the night of the 25th and then yelling at ayakashi.

Senri is going to do whatever he was told to.

The current hierarchy for people ordering him around is Roxas>Kairi>Raichi>everyone else he knows>random strangers.