I happen to agree, but you'd still want them to use suits as well.
There's nothing wrong with augmenting good suit work with some CGI shots, but I certainly wouldn't want a "fully CGI Predator". Just look how good the first two Predators still look today compared to a lot of the CGI monsters they churn out now.
Not to mention, the Predator has traditionally been played with suit work for five films now, to the point where that humanoid movement is undeniably part of the look. It wouldn't make sense to suddenly go full-CGI just so it can leap and jump about in inhuman ways, because it's never done that before.