Is it necessary to create all new levels for this project? I thought originally it was more about compiling the best of everyone's levels into a coherent Lemmings remake with increasing difficulty, etc. But now it seems that everyone is about creating all new levels for it... I feel that if it requires so many new levels, it will never get finished. It's not as if the remake is for "us" really... I mean, those compiling the remake will have had to play the levels to know where they belong, etc., so I don't think many new levels is really a good idea. It would be much easier, and more progress would be made, if we looked for the best levels from each author, arranged them in some interesting progression of difficulty, and compiled that. Then throw in a few new levels at the end to fill in some gaps (special graphics levels, training levels if they're going in, repeats, etc.)
Then, by the end, the Lemmings re-make would be a great thing to advertise for people who maybe just discovered CustLemm and want to check out a well put-together compilation of some of the interesting custom levels out there.