Decision has been made

I would want you to stay, if you leave, then this game could be overrun by toxic players.
Just take a break if you need to.

I think you should do whatever feels right. I wouldn't say Dreams is dying, after all Mm is hiring more people to work on Dreams, showing that they have faith in it.
If it feels right, you can just take a break. But then again, the choice is up to you.