It appears that your I-130 petition is approved and now you will get paperwork from NVC regarding further instruction. How long will it depends upon when the visa becomes available . You can check the visa availability date from the Visa Bulletein at U.S. State Dept, website, under category F2, Family based category. The I-130 petition priority date can be found on the receipt notice you received when you sent initial petition for filing. it will also be mentioned on the approval notice, which you will be getting very soon.
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The decision has been made and the case transferred to NVC for visa processing or in-line waiting until priority becomes current, whatever the case may be.
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