Eventually, pure 6-APB powder will be available over the web, but realistically it's still going to be a while until this (and the illusive 5-IAI) are readily available in consistant strengths etc, obviously the makers are still experimenting. People looking for a Mephedrone replacement will eventually get one, there's no doubt about that. It's just a matter of finding an RC that mimics its effects. It will eventually happen as there is an endless amount of fun, recreational chemicals waiting to be synthesized, it's just a matter of time.
The legal scene is in no way dead, the next generation just hasn't taken off yet.
Gen 1 - BZP
Gen 2 - Substituted cathinones
Gen 3 - ??? who knows
Both were great, but gen 2 takes the medal for me. I'm just excited to see what the inevtiable new generation is going to bring!