Como se usa estar + ir
Es posible en espanol decir, "We are going," usando estar y ir. Como se dice: "Estamos ida'"
Good point, Pasa, one I should have mentioned. But that Spanish is a little different from "We are going." "Estamos yendo" means "We are right in the middle of going, at this very moment."
I interpreted the original question to mean how we would say, for example, "We are going to the pool." In that case, we would not say "Estamos yendo a la piscina," but rather "Vamos (or vamos a ir) a la piscina." Well, I suppose there are conceivable scenarios in which we might say "estamos yendo," but not usually.
If someone came up to me and a friend, and said "Tengo algo que mostrarles," I might reply "Nos estamos yendo ahorita. ¿Podemos verlo mañana'" (We're leaving right now. Can we see it tomorrow')
We are going = Vamos
We are going to go = Vamos a ir
No se usa la palabra estar en este caso.
If by "Estamos ida" you mean "We are gone," that's incorrect. It would depend on the context, but something like "Ya no estamos," or "Ya nos fuimos."