Well, all I can say is, regardless of his current popularity, if they ever do develop a new Klonoa game, I hope that its not some crappy mobile release on iOS and Android. 'Cause that seems to be where some companies are focusing on, and its frowned upon by hardcore gamers like myself.
To Sable, you make a good point, actually. It's rare that I hear of Gex these days, considering that I've beaten his second game back in the PS1 days and played the third a lot. But that's probably because the Net was in its early days in the late '90s and Gex ultimately faded into 98% obscurity when the PS2 launched, whereas Klonoa didn't with Klonoa 2 when the Net became more and more used by people. And then there's the Wiimake, the comic, and the EoD re-release, whereas Gex had none of these things.
I blame it on Crystal Dynamics focusing too much on Tomb Raider, really.