I have heard rumors of a second will, that the will was changed, that pages were left out......all rumors with no real backing.
A will is usually held by the lawyer who drew it up, a copy would have been given to Elvis and with large wills one is kept sealed in a bank or safety deposit box. The will could not have pages missing from one copy and not missing from the others, the pages run in sequential order, with sub sections, etc.....all in order-you could not just throw out pages-because it would throw off the sequential order of the whole document.
The lawyer who drew up the will attested to the fact that it was indeed the last will of Elvis and the court agreed and accepted it as such.
Elvis just did not leave Billy anything specific-the closest Elvis's will came was in mentioning that in times of hardship relatives could be helped at the descretion of Vernon (paraphrasing the section)
So unfortunately it is Elvis who dropped the ball for Billy-why I have no clue.......he may have felt he had plenty time to revise and revisit the will in the future and just did not worry about it (that happens pretty often in many families)
Or he may have known his finances were not where they ought to be at that moment and he wanted to assure that Lisa was first and foremost cared for.
No matter what I agree Billy should be at the least given some type of work from EPE.