Language use:
You should always keep in mind that English is a chronological language. English speakers simply always need to know when some action or event took place.
Chronology, or events and dates set in order of their happening, is expressed by English speakers through verb tenses. Each tense indicates the connection between two or more time periods or the exact time an activity occurred, which underlines the importance of English grammar tenses. They can be used to create different meanings from the same verbs and help to anchor the listener understand the meaning behind your story. Thus, English has a lot of verb tenses with some expressing a connection between two time periods whereas others indicate the exact timing of an activity. Further, the depth of the English tenses should never be underestimated. We can, indeed, express very different things when simply changing the tense; or even use tenses as rhetorical devices to stress whether we strongly believe a project "is going to succeed" or simply express that we "will see" if a project "will succeed".
Taken from: https://www.lingualinkdc.net/blog/grammar-tenses
Taking into acount the previous passage answer the following question:
Next year my family and I ______ go on vacation to the US.