Double post for the sake of updating, and this is a long post.
I made a second version of the splash art, which although I feel inferior to the first, has some backstory to it. You're probably thinking "whoa, what's with the model"? Well...
This NeoGAF thread is a thorough datmine of the Hunters cartridge. If you're one of those guys who enjoys cut content and stuff, go look through it. There are a few Sylux-related things that I want to bring up, which may or may not relate to it's position in Smash:
a) The unused Gunship messages
WARNING: long-range sensors detect warp signatures of stealth-class spacecraft approaching the ALIMBIC sector.
GUNSHIP TRANSMISSION WARNING! unidentified vessel detected in docking bay alpha seven. $EXTREME CAUTION$ is advised.
These two unused Gunship messages heavily allude to Sylux's presence and fight in the Vesper Defense Outpost, which may have been displayed before or during the battle(as Sylux flees to the courtyard and the Delano 7 appears), specifically hinting at the Delano 7. If you'd want to be creative and use these in Smash, they could easily have a segment in a Metroid-themed trailer hinting at Sylux's arrival, or if the Delano 7 were it's Final Smash, reword a bit and have the message display onscreen after Sylux uses the Final Smash. Just ideas.
b) The scrapped game mode
Thread said:
This image suggests that one of the elements outsourced to Retro Studios was implementation of a ship to ship combat mode. No trace of this gameplay mode exists in the final game, suggesting it was cut from development early on.
You're most likely asking "what does a cut mechanic have to do with Sylux in Smash"? Given that this mode would have included ships, it means more Final Smash ideas involving the Delano 7, perhaps in which Sylux pilots the D7 with a similar HUD. The only issue with such an idea would be that in turn, it would make Sylux's Final Smash similar to Zero Suit Samus' own Gunship FS, but it can be worked around.
c) Cut audio files
Have a listen to
this audio clip. It's a shortened version of
Sylux's(awesome) theme, and the file name explicitly confirms it was a scrapped intro music of sorts. All of the Hunters have one. Now, returning to the "cut thing related to Sylux" debacle for a third time, this intro can be used in one of two ways: in a trailer, right before Sylux's splash card is shown, or possibly part of a second Hunters song, incorporated somehow(don't count on this).
That ends what I could correlate to Sylux in Smash through the datamine. Oh, and because I never stated it, the model used in that splash card up there is a high-res model that, you guessed it, was never used. Looks rather detailed for a DS game.
Hope to see more supporters soon!