@usagirl1776 It will probably be tough (the GPA will hurt more so than anything else. If he has exhausted the max number of APs allowed, and dual enrollment is an option and your son truly believes he can do well, I would have entertained it). Also, I would send in the 5 and not the SAT2s…concentrate on something else. Your son may not be that great at multiple choice (or in context of Spanish, may be one of those who certainly speaks better than he can write or “see things on a page”…many native speakers of non-English languages are like this and so are English speakers to a large extent. The AP Spanish test is likely more comprehensive in terms of testing style than the SAT2 I would guess) which is okay. He should find other tangible ways to demonstrate an academic strength or passion in whatever areas.
It is a possibility, but I would not say his chances are necessarily even as good as other applicants even if he was attempting an ED round. You should list the extracurriculars other than Study Abroad (this just shows that the student had access to that opportunity, so may not count for much) or at least evaluate whether or not any of them are more academic in nature and could perhaps demonstrate a passion or strength that compensates for weaker portions of the application.