100% agree with you on Wilson. But if English umpires aren’t to be used, he surely will be appointed as there aren’t that many other candidates as you say.
Will be interesting to see how many games Raza or Holdstock get. One of them will surely get at least 1 test onfield as I don’t think it will be a good idea appointing just 4 umpires (Erasmus, Dharmasena, Gaffaney and Menon) to a 5 match series!