with the launch of a new system (NX), the consolidation of another one (PS4) and PSVR, which probably is still underestimated here, I don't see how 2016 numbers could be equal or lower than 2015...
PS VR is going to cost the same as a new platform and you can't use it on the train. It's not going to be big(at least for a while). We also have no idea how much of a boost PS4 will have(could be less than 3DS declines) and NX is still a big question mark.
But overall I agree. It should be higher than 2015.