I don't see what the problem would be even if a VE came out that had everything an LE had. It would still be different and the LE would still be collectable. Kind of like a first issue book is far more valuable than subsequent printings. Heck, already people mod their Pros to near LE levels considering the games play the same and I dont see that causing any major heartburn. I guess what I am saying is does the LE badge determine the collectability or do the features? Since features can always be added I say its the badge.
Worst case, yeah, if someone wants to sell their LE while the VE is being produced they might have a harder time selling for a premium but I think the moment they were no longer being produced once again people would be looking and willing to pay.