I've come up with heading toward L'Arile on an ill-defined quest (presumably led there by the Starshards), where the adventurers are press-ganged into service once again, on a dungeon crawl to help clear out some demonic cultists (I forget what they're called, but they're the elves who sold their souls to survive the lunar rain). The elven general sends his son along (reputably so he can be sure he can trust us, but also with the hope that we'll be a good influence on his gothic son Thorn). Dungeoncrawl. Betrayal by Thorn, revealing that he is among the cultists. Teleporting trap set off that puts the PCs in the middle of a mech battle. Thorn escapes in the chaos. Sorry, but this phase of the adventure isn't fully fleshed out yet. Part 2: Freeing Zack Rodebaugh, Artist of Steel. His gf tries to bribe the adventurers into not investigating. Free Zack. Learn that the skinstealer has loaded up a bunch of eggs on a mech to Edge, in order to spread influence across Highpoint. Chase after mech. Save the day. Part 3: At Edge. Shopping. The steamborg shopkeeper tries to sell his latest ware: an unfolding hang glider "parachute." Ill-defined adventure. Thorn shows up again, at the top of Edge. Battle. Escapes by jumping off the cliff and deploying one such hang glider parachute. Any PCs who did buy one get a chance to have a chase scene.
I am Omnirahk, half-Rahkshi ("Omni") of the WotC forums. I consider "Psionics in DragonMech" (see my website) my greatest contribution to anything d20 so far. At least, it's my most successful topic.