Will “Latinx” win out as a gender-neutral term?

The term Latinx has been invented as a gender-neutral alternative for Latino and Latina. It has met with considerable controversy. If it is accepted, what will this mean for other languages with grammatical gender?

https://www.washingtonpost.com/news/post-nation/wp/2018/09/14/latinx-an-offense-to-the-spanish-language-or-a-nod-to-inclusion/?utm_term=.cd96023148f7