The worthy commentators are now wondering what the players' "would settle for" endgames will be. Zelensky has been equivocal, talking about pushing the Russians out of Ukraine to pre-Crimean invasion borders, at the same time as making concessionary noises when talks were mentioned.
Washington - they'll want to see Russia get a bloody nose and a better armed Europe, but will they want to push Russia hard. That could provoke a nuclear reaction, so the guessers say no.
Putin - perhaps he'll want to settle on rigged elections in Ukraine. Nobody sees him having a "general mobilization" to get enough forces to push all the way to Moldova.
Last I heard was out of Crimea too. There has a number of rumbles about the endgame including against Russia they can't win - totally anyway. I don't see it that way. Either sides achievements depend on a number of things so could go either way in terms of degree. Supplies in a general sense often sort out the result of a war. WWII is a good example of that. The need to replace losses quicker than the enemy can. This one is a bit different but fighting needs kit and people and the sundries.
For a mechanised war which it is I am not sure how much masses of foot soldiers help in defended situations. I'd have thought not a lot without a lot of body bags. They need the mechanical bits and an array of guns as well. The mechanical bits need more training to use. Some more so than others. It seems some soldiers are being taken out of Ukraine to achieve that. The howitzers sent are seen as not really different to the general ones so should be easy to use. The German items rather different and that is where training was mentioned. In Germany being mentioned. Pass. C4's lady of experience who has been all over the place thinks contactors will appear. Training even for maintenance. She has seen loads of them elsewhere.
I suppose both sides can draw on trained reserves preferably experienced ones.
Nukes - pass. They can be used in various ways. They tend to capture a mess.
Latest talks - G7, ways of getting grain out of Ukraine. Railways mentioned with problems even if all are working. Not sure about that as E Europe may have some of the same gauge as Russia uses. It appears Ukraine use it too.