Figure 1. Concept for new wide-body airliner. Source: United Aircraft.
The intent is not to propose that the existing wing is reused but rather to check the technology level against western designs and how big a leap it will be for the partners to make a modern high performance wing for the aircraft.
The IL-96 wing is roughly on the technological level of the Airbus A340-300 wing with a bit lower aspect ratio.
The dimensions are close to what is needed for the new wide-body but sweep and aspect ratio needs to be changed for a new wing.
A wing for a 2025 long range wide-body also need a more modern construction technology than classical aluminum alloys.