I've been a Juiced Bikes watcher for about three years now, and have had a CCS for over two of those.
The CCX started out as the CrossCurrent (no designation) about three years ago. The CrossCurrent Air was a more economical model. People started buying the original CC and putting fenders/racks/lights on them, so Tora decided to sell them that way. This was the CCS and came out in mid-2018. They sold out one run quickly. Mine is from the 2nd run, in late 2018. That was when they went to the Sapim spokes, which solved a major spoke breakage problem. The RipCurrent came out in early 2019, the Scramblers in mid 2019, and now the Scorpions have arrived. Plus scooters and skateboards mixed in along the way. There was also the OceanCurrent but I never paid much attention to them. I believe they preceded the CrossCurrent but not sure of that.
The CrossCurrent S2 sort of reminds me of the CrossCurrent Air, only with a large 52 volt battery. Economy model.
So basically, Juiced has come out with two models (or major upgrade of an existing model) per year for the last three years. There is no sign of any new model on the horizon at present, but then the Scramblers caught me by surprise so who knows?
The CCX is the mature development of the CC model line and will not see any significant upgrades. Since it's their main commuter bike, I don't expect to see it go away. There's a sizable market for fat tire bikes, so the RipCurrent was a natural variation of the CC and won't be going anywhere either. Unless Juiced totally gets out of the diamond-frame bike market, you can buy one of those models with confidence. IMHO.