The Japan international comes off contract in December.
"The situation has not changed. Honda can talk to another club at the moment because the rules permit it, but we are ready to let him go earlier faced with a reasonable offer," director general Roman Babaev told Sport Express.
"We are glad that Milan are showing interest, but also need to be realistic about the fact his contract is out in six months.
"We are not worried about him potentially leaving us on a free transfer. The ball is in Milan's court now."