I say get a Clarity PHEV while you can. It is very possible the market will polarize to only gas or electric while PHEVs will go by the wayside. PHEVs currently are not profitable to the car manufacturers.
One option is a lease. That way you have a 3 year test drive. At the end you can look at market options or buyout the car rather cheaply.
^^^ Yes this is correct. PHEV sales are at a supposed "loss" to increase CAFE (gas mileage), ZEV (certain states), and AQMD (Air quality) points for the manufacturer. Manufacturers use these points to offset their other models which are gas guzzling & polluting cars...
Sales of Claritys are not high enough to warrant any changes, upgrades, refresh or LCI changes.
I would not expect any model changes for at least 4-5 years and only if they start selling like hotcakes.
OP if you are not happy about the design, features, options of the Clarity, add your own - I am currently working on installing a rear proximity sensor system into the rear bumper because I back into parking spaces all the time....
Or go look at a Volt (discontinued), Prius Prime, BMW 530e/X5e, Jaguar iPace/ePace, or Mitsubishi PHEVs...:surprise: