I highly doubt they are cutting Ally Predators out of the movie, I didn't read the script, but I think they going to show them soon in the trailers, or keeping them a surprise for simple movie goers, who don't know about all this leaked info.
Also I agree with Hollywood that Predators from RR didn't feel superior at all. They tried to make subtle changes and it didn't work for me personally, the super predators from RR "Predators" felt weak compare to first two predators from original movies.
Three predators couldn't handle a group of warriors from Earth, where the single Predators were slaughtering everybody. Yeh I get the point that all characters from "Predators" were bad ass like Dutch and Mike Harrigan, but it didn't feel like it. Also I don't like action scene in the end of "Predators". The fight was Meeeeh.
It's why I don't have problem with the Upgrade here, because Shane does action well, and also Upgrade really look different in the size department, where it's delivering idea much clear that this is Super Pred.