It is not possible to reliably confirm the show titled "Show 2026": the provided results include a general page of Kyiv's poster and a separate page for the National Opera of Ukraine, but there is no clear link to such an event at the National Academic Theater of Opera and Ballet, Kyiv. Therefore, the honest answer is this: you can only go if you have another, more precise record of the event, because from the available data, this is rather a general theater poster, not a specific show.
What is known
On Concert.ua, there is a separate theater poster for Kyiv in 2026, which gathers dozens of events of various formats — from dramas and comedies to opera, ballet, and musicals. There is also a page for the National Opera of Ukraine in the catalog, which Concert.ua describes as the largest opera theater in Ukraine, located in the center of Kyiv at Volodymyrska St., 50, near the "Zoloti Vorota" metro station.
This means that the place is well-known and convenient for a cultural evening, but the name "Show 2026" in the provided data is not confirmed as a separate event. If you plan to visit this location, it is most reasonable to focus not on the general name but on the exact repertoire and poster of the specific evening.
Is it worth going
If you love theater and want to spend an evening in a classic Kyiv cultural venue, the idea sounds good. But based on this data, I would not recommend buying a ticket "blindly" just based on the name, as there is no confirmation that this is the exact show you are looking for.
It is better to look at the specific production, its genre, and the cast — then you can honestly say whether this is your option. Would you like me to turn this into a short announcement in a more "newspaper" style?