Keep in mind that it could be anything that's infected the beer. It may turn out okay (and even excellent), but it's dicey. If you have the carboy space to dedicate this brew for several months go for it. Otherwise, have no problem with dumping it. Don't try and cover up any bad sourness or funk with fruit/hops. Don't waste your time. I'd pitch some bottle dregs to ensure good bugs/funk dominate vs some wild yeast/bugs that could be detrimental.