Does the now discontinued Edge Remote work with the x40 series?

I'm a big fan of the Edge Remote, I use it exclusively to look at various screens on my 530.  I've been working towards replacing my 530 with the 840, but without the Remote to control the head unit, I might also consider competitor models.  The Remote was a huge differentiator for me to choose Garmin, and with its demise I'm not sure now.  I own two Remotes, but if/when they die, there may not be an advantage for me to stick with Garmin.  I've no interest in electronic shifting for MTB, so the Remote is my only option to control the head unit without taking my hands from the bars.  So... the question... Do the existing Edge Remotes work with the 840, and can anyone from @Garmin possibly comment on bringing a Remote back?