It's not often that we in the critical world revisit a production towards the end of a run to see how it's settled. I had two reasons for wanting to return to Christopher Alden's English National Opera production of Britten's A Midsummer Night's Dream. First, I wanted to hear the liquid-gold countertenor of Iestyn Davies in action as Oberon, since he'd been voice-indisposed for one night only (and superbly doubled in that capacity by William Towers).

Public feuding, private sorrows: the elemental passions of Verdi's Ligurian power struggle haven't had a vivid London staging since the Alden-Fielding ENO classic gave it a guiding (or, according to taste, hindering) giant hand in the late 1980s. Dmitri Tcherniakov, the most disciplined opera director to have come out of Russia, was a clever choice for the company to invite to the Coliseum.

Just think, said a veteran enthusiast of Britten's operas when I showed him the earliest publicity designs for Christopher Alden's production, you could set them all in a school, even Gloriana - what about headmistress Bess and head prefect Essex? But could you squidge everything into the one shape, I wondered? At ENO, it makes instant sense in the composer's near-perfect musical translation of Shakespearean wood magic that Oberon is the schoolmaster who prefers changeling pre-pubescents to now-adolescent, discarded Pucks. That's the strongest of starting points.

Contemporary music and 11 new productions are at the heart of a strong ENO 2011-12 season announced today.

Anything goes in the wacky world of Berlioz’s Faust story. It’s a heaven and hell of a lot better than Gounod’s, but it isn’t an opera, it isn’t an oratorio and it certainly isn’t the gospel according to Goethe. So Terry Gilliam, ENO’s latest wild-card debut director, was right not to play by all of the composer’s already rather warped rules. At first you sigh: not the Nazis and the Holocaust again. But only an oddball visionary like Gilliam is going to come anywhere near the often disorienting musical pictures painted by the most original of Romantics.

Wars have no end. Soldiers may come home, battlefields may be vacated, peace treaties signed, but scars remain. The violence of combat has a way of revisiting itself on the victors and vanquished and ravaging soul and state.

At 25 years old, Jonathan Miller’s Mikado may be more Grande Dame than ingénue, but it still has a Charleston kick in its step and a shimmy in its pearls. Styled and stylised, chic and slick, it's as far from the operetta’s ubiquitous am-dram incarnations as from the Japan of the original. Yet just as the Minimalist decor and monochrome palette of an Art Deco interior prove unforgiving to the smallest hint of dust or casual clutter, so the sharp lines of this production provide little cover for the relaxed paunch or middle-aged spreadings of a revival.

Some of you will know that Wagner and I haven't been seeing eye to eye of late. Last year's Tannhäuser I believed was the end of the road for the two of us. Not quite. With one of the most celebrated Wagner productions of the past two decades returning to the English National Opera last night - Nikolaus Lehnhoff's Parsifal - I decided to give him a final chance. My whole mind, body and soul was primed to repel it, yet I came out almost blubbing.