No, since I have it on DVD from the last time it was released in the vault. The Lion King is my favorite movie (not just my favorite Disney movie, but my favorite out of any movies, period), but I don't think I can justify spending the money for a new edition of a movie I already have.
Funnily enough, last night I actually had a dream that I bought a seven-disc special edition DVD of The Lion King that contained tons of "making-of" features and a DVD of the Broadway show. (Sadly a set like this doesn't actually exist...) Now that would be something I'd be willing to pay a lot for!