Probably not, because these papers would need to relate to a specific, filed court case. I would assume that even if you filed for divorce a couple of years ago, but then didn't do anything else with the case, it's long since been thrown out, and I'm not really sure from what you said that you have ever even filed anything with a court to date. If you file the divorce petition after the signature date of these "papers" (I'm not sure whether you mean a waiver of service, an agreed divorcee decree, or both), you're going to need to first provide her with a copy of the current, filed petition, either by formal service of process or informally and get a waiver of service from her, and THEN obtain her signature on whatever court documents are involved.
If everything is the same and she still agrees to all the terms then possibly, but with the passage of time you may want to update them.
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