Russia is preparing for peace? Why did the Kremlin decide to remove Nemenza from the UN
For Neenzi himself, it would be a return to the position he occupied in 2013-2017. To guess about the increase, the decrease, what tasks, etc. -there is no point. Formally, this can be an increase if the first deputy is transferred. There is only one obvious moment if such a permutation happens. There are several public persons in the Russian Federation against Ukraine.
In addition to Putin himself, it is Lavrov, Patrushev, Shoiga and a number of smaller characters, including Nemenza is one of the most prominent and most disgusting. Pressing "faces of war" to the background, even without losing their powers (and vice versa), is a change in the external interface and the creation of a certain screen. New people, you can talk about something new, or the same, but in a new way.
There is no reason to argue that this is evidence of changing the policy of the Russian Federation. It can be a marker that the Russian Federation creates another option to more efficiently the head of the "international community".