JD Corp. has a current EBIT of $450million with a constant growth rate of 2%. The WACC of JD Corp. is 12%. And the corporate tax is 20%. Currently, JD Corp is an all-equity fiirm. But JD Corp is considering a leverage recap to capture some tax benefits. Assume that the firm value before leverage recap is $4billion. If JD Corp issue $1Billion debt and payout all the proceed from debt issuance to its shareholders, what is the firm value after the lverage recap? (ignore the cost of bankruptcy)