Might just be me, but a few of those scenes in the trailer looked really fake (more year 2004 CGI than 2019). In particular I note the three following scenes are being rather poor:
1. The terminator liquifying themselves and moving themselves out from the truck onto the bonnet, it looked "too much" like the photoshop liquify option (where it skews the image), rather than actually showing an actual "liquid" effect.
2. Sarah firing an RPG at the Terminator on the highway. The explosion looked out of place, flat, and not physics appropriate for the explosion you'd expect from the angle we see. It looks like the old way of superimposing a 2D CGI explosions in games on top of areas where it detonates without a care in the world as to how it would interact three dimensionally around it.
3. The last scene where we see the Terminators face reform, there's no shadowing of any kind, only a 3D mesh of where the "liquid" process can't go from physically. Looks really jarring because it's still using the same "liquify" effect from point 1 above, and also no shadows of any kind that you'd expect from the "mass" of the "liquid" moving and blocking light as necessary. (It does however have some reflection, but no shadow/blocking of light)
Also, the "physics" of the last fight in the trailer seems very off. It's almost watching partial Wuxia acrobatics flipping around the place from the "force" of the impacts being thrown about, rather than appearing to be a VERY heavy object being hit by a massive force and flipping appropriately.
Needs more work I feel.