Yes Gatsby is Denis Matvienko's brainchild project. He funded/designed it. It's not a Mariinsky project -- just like Vishneva's projects are not the Mariinsky's, they are hers. So this is an independent production presentation with outside funding -- it just will be performed on the Mariinsky stage. The "troupe" shows that with a select cast (ie Pavlenko, Sergeyev, and the Matvienko couple). ie the Mariinsky Ballet itself is not performing it, just members from the Mariinsky. Usually this sort of project is done on other stages in the city, but more and more the classics are being pushed aside for modern "projects" such as this.
About the Bronze Horseman, (by way of translation for those who wish it), the entry titles there in the clip states that the ballet takes its story from the great flood of 1824 in St. Petersburg. About 5 minutes from where I live, near where Dostoyevsky wrote Crime & Punishment, there's a mark on the building and a plaque noting where the water level was in that year. It's about the level of my shoulders (I'm over 172 cm).
The film clip that RussianballetVideos posted is probably in response to this new announcement
. It shows the famous and sweet Sergey Berezhnoi in the main role of Evgeny. He loses his beloved Papasha (Kolpakova) to death, and blames the statue of Peter the Great. He is then haunted by the statue and thinks it follows him everywhere.
There's a cut in the recording at 9:15. But I have to say i really like Zakharov's choreography here. It's very lyrical and the Gliere score is gorgeous. It's a wonder they have not renewed it before now as it doesn't seem to require complicated sets, and the choreography is all very clear in the recording. I can easily see Kondaurova/Lopatkina and others in the leading roles. It's interesting too that they did this in the 1960s style of the "film ballet" like the film version of Sleeping Beauty circa '66 (with Dudinskaya and Soloviev) ...with the interpolated shots of Berezhnoi doing chaine turns and the pictures of the statue... I'm curious how those sections play out on stage in the full length.
My guess is Horseman will debut during the festival and then re-debut at the start of the White Nights. That's usually what they do. I just pray the project is not scrapped in favor of others before the spring. I hope it stays in the season plans.
(the subtitle mentioning insane asylum must be what you meant by political statement, sandpoint