Thought I'd bring this to everyone's attention especially as there is no mention of Zelenka on the promotional material.
Last year, I worked on some of Il Diamante and Il Serpente di Bronzo for a performance by Sounds Baroque in the UK. They have now put together a new opera with new English text in the Baroque pasticcio style. At least one aria from Il Diamante is included with new text, but also music by Hasse, Gluck, Handel etc. There will only be a very small amount of Zelenka, but hopefully will be a nice surprise for the general audience and should be striking set alongside Mozart for example!
Tickets available here