To me (native "American" speaker) I think either We "will"... or We "are going to"... work fine to indicate future action with non-movement but not with movement.
We will stay. We are going to stay. - Same meaning
We will live here. We are going to live here. - Same meaning
There can be a slight difference in intent.
We are going to live here. - statement of fact
We will live here. - statement of intention - This is going to happen no matter what wants to interfere.
We are going to the bar. - good
We will the bar. - totally wrong