Look certain observations:
1. EVEN assuming Ukraine lost 100k soldiers in a year, Ukraine can sustain this for 10 more years if they continue to get large lethal and non lethal aid from the west.
2. Russia's very lofty goals of Demilitarization, with a permanently neutral Ukraine, with NATO and NATO weapons out forever does not match Russian capabilities going by their performance in the past 6 months, given ever increasing lethal aid coming from NATO. Ukraine does not yet need to make these sacrifices and give up on its European dream (which most Ukranians still support ), as AFU has not yet faced a decisive defeat by Russia.
3. Ukraine will not be able to reconquer all the lost lands, but unless Russia has a never before seen huge force hidden, which it can unleash, it does not seem that Russia can decisively defeat the AFU. At the current pace, Russia might take 2 years to even conquer all of Donetsk... Yes, momentum can sometimes shift suddenly.But, without a northern vector from Kharkhiv, I don't see Sloviansk and Kramatorsk falling in 2023, even if Bakhmut falls..