Oh yes, Executor is
definitely on the list, albeit at a much smaller scale. I'm thinking about making it 1:20,000, which would make it 34.6in/88cm long, and also a set of five accompanying Imperial-II Star Destroyers at 3.14in/8cm in length in order to do a "Death Squadron" display. I might even include a name plaque and set of stands to accompany them.
The model I'll be using is this one:
http://www.xwaupgrade.com/screenshots.php?image=ssd_1_ 1.png
http://www.xwaupgrade.com/screenshots.php?image=ssd_1_ 5.png
http://www.xwaupgrade.com/screenshots.php?image=ssd_1_ 8.png
Yeah, it's a beast. And insanely complex.
But I'm game to give it a shot.
*
The one that Sprintx used from the original X-wing Alliance game is okay, but it looks really awful compared to the real thing.
This one should satisfy all those Executor fans out there.
hello I wanted to compliment you for your models. they really looks great!
just one question, Have you considered whether to make also the alliance "big"ships?the homeone or the mc80 starcruiser?to have them side by side whit the star destroyer would be great
First, thanks! But you should really thank the guys at the X-wing Alliance Upgrade Project. They are great modelers and equally great texture artists, and it's their hard work that makes any of this possible.

I feel a little guilty for not mentioning this throughout the thread; I really love what they're doing for that old game (one of my all-time favorite Star Wars games), and I feel like I shouldn't be getting all the credit here.
I'm definitely doing the Rebel ships starting with Home One after I finish the Imperial capital ships. I just want to finish the most-wanted fleet first, then finish up with their opponents so people can do a "versus" diorama if they want.
*(Yeah, I've caught the Pony bug. In my defense, it's a pretty contagious one. sign1)
EDIT: Oops, I forgot to put up a pic of the development of this model: