I don't understand French very well, but if you're thinking about remaking Gobliiins 4, I think you should reconsider. I really liked that game and I'd prefer your strong talent invested in a brand new game. I know 3D graphics weren't great, but back then 3D felt mandatory for every game, so G4 is representative of an era, after all. I still like that as it is. Gobliiins 5 is great, so I want to keep you creating new stuff. And BTW, I would LOVE to see Fingus & Winkle back. I loved those guys from Gobliins 2. :-)
Anyway, these are just my thoughts. You're the author, you decide what to do. It's your call. ;-)