The thing is this, the Predator as a character only gets the fanboys into the seats, while this movie was largely ignored by the general public. They should get an action star, someone with a bit of presence.
Boyd who? Yeah. Alien Covenant at least had Fassbender, that helped a bit. Ever since AvP they rely on the Predator only and i think that's a mistake.
Get someone like Gerard Butler, Statham etc., they do small action movies (40 - 60 million) and each one is a success. The Rock is too expensive by now, but damn it woul be cool to get someone like this in a leading role.
I didnt care for The Meg at first, but when i saw that they cast Statham i was curious, as were others, as that movie made a shitload of cash... and my god, it was fun, but also really dumb, people don't care about quality and/or reviews if they are curious.