In the previous races there were usually three NELs. If we suppose that in this race the NELs have been replaced with KRLs then we should have one more of those. So far the KRLs happened in the same country, now the only country that has two legs is India, but somehow I don't think that we are going to see a KRL in Kolkatta. I thing that both Indian legs will be normal elimination legs and that the last KRL, if it exists, will be the Vienna-Luxemburg-Zermaat combination. All three places are very close to each other and there are frequent and regular trains between them.
Another factor, so far both KRLs contained a train ride.
Of course all these are just speculation and TPTB might surprises again.