Lionel re-released the JLC Challenger in the Vision Line product line with an array of special effects. The soon to be re-released JLC Big-Boy will offer a bevy of special effects. Now, the 2015 scheduled re-release of the Y6b will have the whistle steam effect. I suspect, and hope, another release of the Allegheny might offer some extra effects as well.
I wonder why Lionel did not offer any steam effects with the recently re-released JLC based H7?