Dunno, you'd need a full Sega leak what with it all being digital sales. I mean what doesnt help is that for all of its aesthetic beauty, JSR plays like a pretty damn busted ass game at the best of times. Sales would ride on old players mostly and not good word of mouth. Was fun to play on Vita, but then it had some crash issues.
NiGHTS HD probably didn't set the sales world alight either, Afterburner Climax and Daytona too. I think Shenmue and Skies would have done better because they're more meaty games with more of a (crazed) following, but there just aren't that many people making Sega console games anymore fullstop. The company wallet is clearly thin and will most likely stay that way unless Sonic Boom is some unparalleled success story (what theyre banking on).
It's like Sega is trying to fail and go bankrupt. They only make bad decision (imo), they didn't touch to the gameplay of JSR for the HD release and it didn't age well, far from it. And then, they decide to release NiGHTS HD... REALLY SEGA?! NiGHTS HD!! Come on, nobody gave a shit when it (by "it" I mean the HD version) released.
So, to me, it's horrible decisions and it's like they want to fail.