In the next 12 months, I expect to see one, maybe more Russian offensives, similar to the actions around Bakhmut, involving very little movement for heavy loss of life. I don't expect the Russian Air Force or Navy to feature any more highly, and their carrier will remain under repair. If the Ukrainians can launch an effective ground attack and take territory, I think it'll really boost their morale, and lower the Russian morale. Expect western economies to focus more on restocking munitions, but at different rates. I don't have much optimism that the UK will be anywhere near the top of the table in terms of a war economy or replenishing stocks. I think we will import in the short term, promise to reinvigorate the home industry and then kick the can down the road.
Ukraine will get the supplies it needs, but it will be from many nations around the world, not just the EU, UK and US.
I think that Ukraine will aim to split the land bridge to Crimea, with the goal of a symbolic liberation of Mariupol. That done, expect the Kerch bridge to be targeted and destroyed. At that point, Ukrainian F16's will start being seen, and felt. Following this, Wagner and the Russian Army will get really pissed at each other, internal divisions will increase, and we'll then see either a general Russian withdrawal to 1991 borders, or the beginnings of a civil war in Russia.
But then again, I'm not a Ukrainian General, and with very good reason.