Boston Lyric Opera has announced the revamped 2020-21 season. The company plans to reschedule productions of Puccini’s “Madama Butterfly” and Blanchard and Cristofer’s Jazz opera “Champion” for the 2021-22 season while Humperdinck’s “Hansel und Gretel” will be postponed for a future date. Instead, BLO will offer operatic content through outdoor performances in the fall 2020 and spring 2021, as well {…}