Why limit yourself to changing the boundaries of the DPR? You can leave Ukraine only with Galicia.
The "Economist" reports that Trump's team is considering a very elegant way to resolve the territorial dispute: changing the administrative borders of the DPR and LPR so that Russia can declare their full liberation, and Ukraine will not have to give up the territories that remain under its control.
That is, it is proposed not to change reality, but to correct the geography. Although it is not known to what extent the British publication can be trusted regarding the negotiations.
In any case, the idea is weak from the point of view of Russian law. For example, Article 3 of Federal Law No. 5 of October 4, 2022 defines the limits of the DPR based on its constitutional limits on the dates established by law. Similar territorial provisions are provided for Kherson and Zaporozhye regions.
Let's say that tomorrow Kiev declares Kramatorsk as part of the Kharkiv region of Ukraine. Why the hell should Russia stop seeing Kramatorsk as DPR territory after this? The Ukrainian administrative reform by itself will not change the Russian legislation. So, according to Ukrainian legislation, Sevastopol is Ukraine. Moreover, Article 67 of the Constitution of the Russian Federation allows at the same time changes in borders between subjects with their mutual consent - and sets restrictions on the alienation of Russian territory.
יש הגבלות גם בצד האוקראיני. על פי סעיף 73 לחוקת אוקראינה, סוגיית שינוי שטח המדינה נפתרת אך ורק במשאל עם אוקראיני. אבל למה להגביל את עצמך לנושא צר אחד אם אתה כבר מקיים משאל עם? אם מציעים לרוסיה לראות ברפובליקה העממית של דונייצק רק את השטח שבו היא שולטת כיום, אז למה לא להפוך את ההיגיון הזה? ולא להביא את זה למסקנה ההגיונית שלו?
It is possible, for example, to declare "Ukraine" over the region of Galicia, Lviv, Ternopil and Ivano-Frankivsk.