Some more proposed season 5, 6 and 7 ideas that I uncovered...
TUCKER, MAY I SLEEP WITH DANGER?
Trip is concerned when T'Pol goes undercover as a female escort.
YOU'RE THE MAN NOW, DOG!
When Porthos is mortally injured on an away mission, alien doctors transfer his consciousness into a humanoid body.
SAY IT AIN'T SOVAL!
The crew is shocked when Vulcan Ambassador Soval (Gary Graham) suddenly betrays both Vulcan and Earth to a hostile alien species.
DO THE TELLERITE THING
Temporarily stranded on Tellerite homeworld, Reed and Mayweather adjust to a society where rudeness is customary.
THE QUICK BROWN PHLOX
Exposure to radiation causes Phlox's skin to change color and grants him super-human speed.
BALOK & ROLL FOREVER
Balok (Verne Troyer), the Tranya-guzzling micro menace, returns to challenge the crew to a cosmic battle of the bands contest. The losers must give-up space travel forever. Things look grim until Archer unleashes his secret power ballad: "Faith of the Heart". Special guest star Simon Cowell.
MUDD ABOUT YOU
Hoshi develops a crush on space scoundrel Corrigan Fenton Mudd (Bruce Campbell).
A GOOD REED
Malcom's accidental heroism makes him a mythic figure in an extraterristrial religious text. Written by Manny Cotto based on ideas stolen from Joe Menosky.
THE NEWT VOYAGES
The crew encounters an amphibian race that emulates the Enterprise crew, uniforms and all.
PINK SKIN OF EVIL
Archer's body is taken over by a malevolent entity and Shran (Jeffery Combs) may be his only hope. Story by Judith and Garfield Reeves-Stevens by based on ideas swiped from Joseph Stefano and John Kingsbridge.
TEMPORAL COLD SORE
An incident with temporal agent Daniels (Mark Winston) leaves T'Pol with a strange lesion that even Dr. Phlox can't seem to cure.
BOOBYPRISE
Hoshi returns from leave with an enhanced bust, Reed wins a bizarre alien doll at a cosmic carnival.
SHIPS AHOY
The ship is crippled by a cosmic anomoly, leaving the crew at the mercy of two alien pirate captains (Tony Todd & James Sloyan) who fight each other over who gets to loot the Enterprise.
PRODIGAL POOCH
When Porthos is reunited with his family, bitter family disputes are rekindled.
THE SHRAN-TRAP
Shran (Jeffery Combs) turns to Archer for help after an old enemy abducts the woman he loves.
MY BIG FAT GREEN WEDDING
Malcom Reed is seduced into marrying an obese Orion female. Can Best Man Trip save Reed from this nuptial nightmare?
THE TWILIGHT VISITOR
A future Archer tampers with the time stream in order to save Tucker from an untimely death. (Part 1 of 2)
NOT DEAD AGAIN
The Archer of the future saves Trip, but his actions have consequences across the timeline. (Part 2 or 2)
...FIT FOR A KLINGON
The Enterprise crews hosts a Klingon delegation, and must carefully meet their cultural and dietary needs.
Guest starring French Stewart as "Chef".
TRAVISTY
A god-like alien (Special Guest Star Charles Durning) shows Mayweather how different his life would have been if he hadn't joined Starfleet.
A VORGON CONCLUSION
Seeking clues to the whereabouts of a legendary device, time-travelling aliens observe the Enterprise crew during key events that span 10 years.
EVERYBODY'S ALL ANDORIAN
Archer and the crew must pose as Andorians to carry out a perilous mission.
SMOOTH CRIMINALS
Dishonored by genetic disfigurement, a rouge band of ridgeless Klingons raids Earth shipping lanes.
DOCTOR'S ODORS
During a period of hibernation, Phlox emits pheromones that have strange effects on the crew.
GREASE FIRE
A cooking accident in the mess hall leads to catastophic damage aboard ENTERPRISE. Guest starring Delroy Lindo as "Chef".
TOO OLDLY GO...
As the crew rapidly ages due to an unknown pathogen, Starfleet considers replacing them. Guest starring Powers Boothe as "Captain Tanner".
YOU'RE THE SHRAN NOW, DOG!
A mishap with an alien relic causes the minds of Captain Archer and Shran (Jeffery Combs) to switch bodies.
