Either show a hover letting users see that the new language button is live or when users click on old button redirect them to top.
Remove after being live for 1 month.
Here's a prototype.
https://dl.dropboxusercontent.com/spa/tuyaic6q75gkcv4/Exports/changelanguage-firstrun/changelanguage-firstrun.html
^ open the link.
the page will scroll to the bottom automatically.
then you hit the read in another language button.
the page will scroll to the top with a message that dismisses automatically.
mock
