Ok, so lets assume we have what? Say 125 different ships in GWX?
At 4 different skins per ship, thats only 500 new high resolution skins.
And who said we had to do them all at once? There are what, say 25 people capable of generating a high resolution skin? Each one takes on 20 ships, does 2 a month and we'll be done with the project in a year.
That doesn't sound to bad, not for something that will have a huge impact on the visual presence in this game.
(side note, cause sarcasm doesn't come through well in writing)
Seriously though, I'm not suggesting we reskin them all right away, but why not start reworking a few at a time. Now that it appears GWX is wrapping up their big modding projects in SH3.
But your prolly right, just better to go on to SH4 and start with a better base to begin with.