You have reason to be concerned. The strategies you mentioned do not address Asperger Syndrome problems; they only minimize their effect in the classroom. Asperger Syndrome is a pervasive problem. When dealt with properly the syndrome can be reduced to a condition that is difficult to detect.
Social engineering plays a big role in lessening the characteristic awkwardness of the syndrome. A pro-active IEP is what is needed in this case. A plan that emphasizes interaction with peers is a more appropriate course of action. Resource Education Solutions can help you modify the existing IEP, or create a new, more challenging version.