The 'Blow Up the World Scroll' sort of transformed into the Scroll of Unholy Fires, although if dungeon-rending explosions are your thing, the Zombie class also has an ability that kills just about everything onscreen in one massive ball of fire. (caveat: this only happens when you die).

Most of the rest of the ideas might someday come to fruition if the game manages to support the cost of developing them.

However! Although not the alien, I've been tinkering with a new monster class that dabbles in a different set / style of gadgetry. He might be making it into an update in the next month, I expect.