There's an e-mail list available if you want to discuss the JW freeware plug-ins. This is also the primary place where upcoming features/plug-ins are discussed.

Sign up on the e-mail list at: http://jwmusic.nu/mailman/listinfo/jwplugins_jwmusic.nu

When you have signed up, you'll get a confirmation e-mail that you need to reply to to activate the list for your e-mail address.