This http://developer.garmin.com/index.php/blog/post/connect-iq-2-biker-monkey was brought to my attention by @appelmoessite.
Have a look here and tell me if I’m correct in thinking that in 6 months time we should get replacements for: Fenix 3 (with Fenix 4); Fenix 3 HR (with Fenix 4 HR); EPIX (EPIX 2?); Forerunner 230 (240); 235 (245); 630 (640); and 920XT (nothing or 930XT). Either replacements will come OR there will be gaps in the SUPPORTED products by Garmin. Can’t be right surely?