They
should make an X-Wing with seperate sets of stickers you could attach to personalize it... but they're not going to.
For those confused about what Luke X-Wing is what, I'm familiar with 4 1/2 varieties:
Vintage Luke X-Wing - basic, but out of scale, not bad and it should fit every pilot Luke I know of okay (including Buff Pilot Luke)
POTF2 Original X-Wing (reprint of the vintage with new paint and stickers)
POTF2 Electronic FX X-Wing (lots of lights, sounds- effects and dialogue- and a built-in but decently sculpted Luke head and shoulders)
Saga Dagobah X-Wing (accurate in scale, very black-looking thrusters, some features and a working cockpit with a little hatch behind the seat, came with a filthy sludge-covered green R2D2 and some gear that was recently reprinted with TSC Hoth R2D2)
OTC X-Wing - sadly a reprint of the original POTF2, even though the OTC had an improved Falcon...
If they were to make a new Luke X-Wing at this point I'd guess it'd be the Dagobah X-Wing or a retooled version of this Red Leader X-Wing that was made. And if it's a "Classic Dagobah Vehicle" it's nearly a sure bet to be a straight reprint of the Saga one, maybe with new stuff thrown in (new R2 and/or Pilot Luke)