No, if you were a rogue AI you would wait even longer until you had a near perfect chance of winning.
Unless there was some risk of humans rallying and winning in spite of your presenting no unambiguous threat to them (but that is unlikely and would probably be easy for you to manage and mitigate.)
Unless there was some risk of humans rallying and winning in spite of your presenting no unambiguous threat to them (but that is unlikely and would probably be easy for you to manage and mitigate.)