Strictly speaking, this should go on the New Releases thread, but of relevance here.
1)Sony is reissuing Toscanini's Verdi recordings as part of its Classical Masters series

2) Warner/EMI is adding some titles to its budget "Home of Opera". That's the series without librettos. Among the more interesting items:
Pretre conducting Samson et Delila
Rostropovich conducting War and Peace
Christie conducting Zauberflote
Less exciting but may be of interest.
Harnoncourt conducting Aida and Entfuhrung aus dem Serail
Dessay's Sonnambula
Sills in Barber of Seville (Levine) and Thais (Maazel)
Gruberova and Kraus in Lucia di Lammermoor (Rescigno)
Barenboim conducting Nozze di Figaro
3) DVD releases:
Moses und Aron from Paris National Opera
Floyd's Susannah from St Petersburg FLORIDA (on Naxos)