My only concern with de Boer - considering the Eredivisie is hard to gauge - is that Ajax have been relatively poor in Europe during his tenure.
Still, our most credible source of information on this forum suggests he's out of the running.
Lets wait and see. His European record is ok, I think he qualified out of his Europa League group this season and has had some impressive results in the champions league like beating City & Dortmund. His European record is not great, certainly not a patch on what Cocu has done this season but probably not as disastrous as people make out.