Well now that there are already working ASIC Scrypt miners being sold. Scrypt alts hold no advantage over sha-256 coins. Devs were releasing Scrypt only Alts because there were no ASIC's, but now that there is should devs just create sha-256 clones if they plan on launching a coin. The security will probably be better, and at least hashes would spread out between coins like they are now with scrypt.