Los Angeles Opera has some performances of Tosca coming up - hmm, now that I peer more closely at the press release, I see that they're in May and June. I would have expected to receive this press release in April, but whatever.
Two casts are splitting the performances: Adrianne Pieczonka and Neil Shicoff (called "one of the great tenors of our time" - not by me) in the first cast, Georgina Lukacs and Gwyn Hughes Jones in the second. Juan Pons sings Scarpia throughout the run.
Based on Lukacs's badly-sung Lady Macbeth in San Francisco this past fall, I'd suggest giving her a pass. The first cast conductor is Placido Domingo, a great tenor who doesn't belong on the podium, alas.