Wizz Ukraine have chopped and changed their routes and schedules about 5 times now since before they even launched.
Lviv to London and Kiev also seems to have gone without any sort of announcement. The flights all went to "sold out" status last week, and have now disappeared from the booking engine. Lviv is now only served from Simferopol.
This does leave me thinking the two Ukraine-based aircraft don't have a lot to do all week now!