Unreleased Dreamwave issues

When Dreamwave Productions declared bankruptcy in 2005, several of their series were left hanging without any sense of strong conclusion. However, various sources revealed small portions of what might have been.

Energon
Although the Energon comic ended with a close to a storyline in issue #30, there are still many plot points left hanging. But with a little (okay, a LOT) of logistical generosity, the American translation of the Cybertron show can be considered to be a follow-up. Sorta.

The War Within: The Age of Wrath
I's clear the story wraps up in some fashion because several of the central characters all appear in later stories.

After Dreamwave's collapse however, several pages of art work were published in the Transformerscon 2005 Program (which had several ex-Dreamwave employees as special guests). The covers to the issues were also seen in solicitations to comic retailers. Issue #4: Issue #5:
 * The cover features Flash stranded on an alien planet.
 * Pages 1,2, and 3 show Flash on an alien planet, attacked by Sharkticon (G1)]Sharkticons. Meanwhile on Cybertron, Perceptor talks with the others Turbomasters.
 * Page 4 has Perceptor prepare to examine a captured clone warrior from the Aerospace Extermination Squadron.
 * The cover features Blaster held at gunpoint by Megatron.
 * Page 1 shows a clone trooper standing over a deactivated Shockwave.
 * Page 2 shows two damaged deactivated clone troopers lying in a heavily damaged lab, and a trail of footprints from a seeker. Also, a few small dead Sharkticons litter the floor.
 * Page 5 shows Blaster fight against Megatron, using loud sounds and his Electro Scrambler.

Generation 1 Ongoing
Comic covers were included to comic retailers in solicitations. Several pages from the unreleased issue #1 were published in the fourth issue of The Comic Book Digest from Lamp Post Publications. And a few more pages were leaked onto the internet.

Issue #11
 * The cover show several female robots, lookin' deadly.
 * Page 1 shows Hot Rodlooking up at a deactivated Optimus Prime being held in a repair chamber.
 * Page 2 has Hot Rod passing by Wheelie and Gnaw and looking out of a window.
 * Page 3, presumably due to a printing error, has the same artwork from page 2
 * Page 4 has Arcee look out a window towards Cybertron shrinking in the distance, as she, Kup, Springer, and the Dinobots travel their way to Cybertron's moon.
 * On page 5, Hot Rod, Wheelie, and Gnaw see a Female Transformers teleport into the facility.
 * Page 6, Hot Rod attacks the female robot, but she delivers a knee to his chest. Wheelie and Gnaw hide.
 * Page 7, the female robot ducks a punch from Hot Rod. She deactivates Hot Rod before he can sound the alarm (at a Transformerscon 2005 guest panel, it was mentioned by the writers that the female robots would be skilled martial artists). She sends a communication back to Quintessa
 * Page 8, more females teleport into the facility. Gnaw transforms to fight them off, but like Hot Rod, he's quickly disabled.

Issue 12's cover features Optimus Prime holding the body of Elita-1 in a manner reminiscent of The Uncanny X-Men #136 and Crisis On Infinite Earths #7. There was also going to be a variant cover featuring a drawing of Optimus Prime by Pat Lee. Ideally, the issue would have been released during December, which Dreamwave was calling their Optimus Prime month.

Issue 13's cover has Cyclonus holding the head of Scourge (G1)

The pages released onto the internet revealed a great number of exo-suits. In all likelihood, these are connected to Project: Centurion mentioned in The Route of All Evil.

Beast Wars
Although advertised and hyped, none of the issues of Beast Wars saw print. However pages released onto the internet showed that it would have had strong similarities to the Beast Wars comic eventually printed by IDW Publishing (which makes sense, as it has the same artist and writer).