Say something?

[TwinMama]

So my almost 4 year old dcb just said,"I'm going to miss you in the Spring."

I asked him where he was going. He said I don't know yet. We don't really have a plan.

Do I mention it to his Mom and ask her?

[KSDC]

Personally, I would ask.
"DCB mentioned that he will miss me in the spring. Is there something I need to know?"

[Ariana]

I had this happen to me but I never said anything. I knew months in advance that DCG was going somewhere else but mom ended up only giving me 2 weeks notice. I ended up taking a year off so had no intention of replacing her as she was my last child to leave.

I would hint around slightly about it perhaps. I wouldn't want DCB to get in trouble.