I just can't see how this could be based on the original Westworld. Who will charge up the robots once the virus takes hold. Other robots? Then will they break out of the theme park and start taking over the world? Well Los Angeles or Arizona at least.Really enjoyed it as a kid. The mini-series on HBO coming in October (I believe) looks promising.
I do hope they leave the CGI at home. If this is aimed at kids no doubt characters will get shot but you won't see the bullets enter or exit bodies which would be a shame.