While I appreciate the enthusiasm, I can neither condone nor endorse any such project in which I don't have complete creative control. Such an endevor would not be Cythera in appearance, feel, soul or storyline consistency. (Not to mention that others have tried before and given up)
I wish I could tell you that there is a new version ready instead, but saddly, I can't say that either. I've got a whole lot of projects on my plate (and some of them even pay money), and at this time I can't invest the amount of time it would require to prepare a new version. This is not to say that I haven't contemplated it multiple times - I can't commit to it.
Work is still being made on the Carbonized version (unfortunately*), but it is unknown when that will be completed, due to a number of factors, including the subtle yet signficant differences between Carbon & Classic (which make getting everything working well extremely difficult), issues with the tools (still using CodeWarrior 8.3, even though I'm running Tiger - converting it to another compiler would probably take an insane amount of time), and generally insuficient motivation (caused by a number of issues, including the above mentioned "busy" as well as a lack of enthusiasm from tester feedback).
(*unfortunately because at some point it may turn out to not be feasible without rewriting large amounts of the code which could be better done by starting from scratch, not to mention the fact that in the end it would still look and feel exactly like a 5+ year old game).