Regarding the negotiations in Abu Dhabi, I have no illusions, because there is no way out of the impasse in sight.
Deadlock on the territorial issue. Therefore, complete nonsense is already being proposed to change the territory of Donbass and to name the regions only what is under Russian control, and to add the Ukrainian part to other regions. Obviously, no one will agree to this and there is also a land corridor to the Crimea, which is the territory of Zaporozhye and Kherson regions. Ukraine will never recognize such borders and will not even recognize Crimea as Russian, because it is physically dangerous to Zelensky. Without such recognition, you can set boundaries as you wish, it will not change anything.
Trying to start with security guarantees implies that the parties will come up with some kind of framework within which the security of Ukraine, Russia and Europe will be guaranteed. The negotiation process on this issue will not be simple. I will only note that Russia proposed to start it in 2021 long before anything else. They haven't started but they will after all, it's not a fact at all that in 2026 and not later.
But the Americans are clearly hinting at some kind of truce during the negotiations on security guarantees. Russia will almost never agree to this, as Lavrov said today.
Therefore, for now everything will be decided on the front. Maybe with humanitarian breaks and respite, but at the front. Now, as they write, we have agreed on an exchange of prisoners, which is already good and a lot in modern times.
And don't forget the factor of Europe, which is not going to take any step towards Russia. She wants a truce and a freeze of the situation because there are no good solutions for her. Hence all the hysteria, including about not playing hockey with the Russians.
The Americans want to involve Europe in the negotiations, as you understand. But should Russia sit at the negotiating table with this Europe? I think Russia will wait for a decision in France; All is not particularly well in Germany, where the government may also change. And Russia has the resources to wait one way or another.