SummaryCompaniesDeal could be signed this quarter with key terms agreed, sources saySale marks Bytedance retreat from online gamingByteDance valuation soared over the past yearSINGAPORE/HONG KONG, Feb 13 (Reuters) - ByteDance is in advanced talks to sell Shanghai Moonton Technology, the studio behind the popular mobile game Mobile Legends: Bang Bang, to Saudi Arabia's Savvy Games Group in a deal valued at between $6 billion and $7 billion, sources said.A deal could be sealed as soon as this quar...