Hi Mike and welcome!
I don't have a Jumper, I have an Evo 29'er, so I don't know what the '16 Jumper will have. One good thing with a hub drive and throttle is if you have a physical mishap or a mechanical problem with the drive components (chain, gears, derailleur, BB) that prevents you from pedaling the bike home or to your car is that you can throttle back. That said, I don't use the throttle mode very much and I wouldn't let the absence of the throttle keep me from getting the bike I wanted, as long as it had a good PAS system and the Easy Motion bikes have very good torque sensing PAS. Some BH ebikes do have a walk feature throttle of sorts that will drive the bike 3-4 mph and still other bikes like the Specialized Turbo have a launch type of throttle to aid in starting from a complete stop.
If you want an answer on whether the '16 Jumper will have a throttle, call Len at
@Crazy Lenny Ebikes . He would know and he might be able to give you an idea when the bike will be in stock and what the out-the-door price will be. I got my 29'er from Len, good guy.