From now on / going forward — often used in greetings or business phrases such as 'Please continue to favor me' (今後ともよろしくお願いします).
取引先に対して、今後ともよろしくお願いいたします。
To our business partners: we ask for your continued support.
今後とも変わらぬご愛顧をお願い申し上げます。
We humbly ask for your continued patronage.
今後とも気軽に相談してください。
Please feel free to consult me from now on as well.
今後とも当社のサービスをよろしくお願いいたします。
We appreciate your continued support of our services.