Just a strange idea I had when you mentioned the "head popping" Valin: what if they did rerelease the VOTC Stormtrooper, but they released it with three heads, all in the same package as a regular carded figure:
1 Stormtrooper head
1 Luke Skywalker head with helmet
1 Han Solo head with helmet
They'd probably have to do some retooling on the ball joint at the neck to make this work, and even though Luke is shorter, we could really use resculpts of both Han and Luke in the armor with a new accurate body. This would allow Hasbro to reuse an old mold, release a figure that people would be guaranteed to buy at least three of (to get one of each figure in a "permanent" manner), and it would allow people to buy multiples of a regular (and the most superior sculpt of) Stormie to build armies with.
Of course, this will never happen, but I like to live in a dream world. That's where I'm a viking.