There are still plenty of possibilities
The Ukraine is a big country and the eastern part around Donetsk offers potential as does expanding the range of destinations served from Lviv.
As Wizzkid mentioned, WU have taken a bashing in the Ukrainian market, largely at the hands of corruption. They started up with KBP-SIP, double daily some days, SIP-LWO and KBP-ODS, maybe KBP-LWO too, although I'm not sure about that one. Soon after they added Kharkov, Zaporozhye and a couple of other destinations, but one by one these were dropped, as were the active routes, until just KBP-SIP remains.