I would get rid of The Lion King. I recently saw it, and while the costumes are amazing, the show is rather boring.
Also, if you've seen Wicked, why not see something else?
I think two good shows to see are DRS and Sweeney. Drs is a very fun comedy, and the music, story, and cast are fantastic.
Sweeney is a darker show, and it is a lttle complicated, but it is a truly amazing piece of theatre. It's score is phenomenal, and the cast is amazing, doubling as the orchestra. This is one you should really see, IMO.
I am a firm believer in serendipity- all the random pieces coming together in one wonderful moment, when suddenly you see what their purpose was all along.