I'm surprised that a front-facing version wasn't released at the same time as the RCT715. I wouldn't expect it to have the radar function, but the benefits of a forward-facing camera seem obvious, and arguably greater than a rear-facing one. I'm surprised Garmin wasn't developing the two side-by-side, but if they were I would have expected a joint launch.
I'm sure we will see one eventually, but I'd guess that it's at least a year off (which is a bit disappointing). At least it will hopefully give Garmin chance to learn from RCT715 feedback and maybe incorporate things like 2.7/4K and imagine stabilisation.