yeah it will change how pve plays out just in LP and sheer armor you can slap on. my concern is what is going to be their pve counter balance to just stop the steam rolling of the difficulties especially when terminators come out. the other catch is what consequences will there be for non vets?
Im pretty sure there will be a Vets / Terminator / Elite only PvE Mode. Mixing Vets & regulars seems a little unfair. Unless it's like, the First player can be a Vet, the rest is his squad or something like that
One way you could implement Veternas and later Elites is adding a side objective to lair missions which woudl be risky but allow one person in the party to switch to a Veteran/Elite.