I think if people see Superman punching someone and getting punched and I mean in big fight, through buildings and stuff, in the trailer, they'll watch it. The GP didn't care that there was no S on Superman's cape, or that the red was too dark, or even that Superman had a kid. SR isn't as hated as some of you make it out to be. I guess the haters are just more vocal (if that's the right word. English isn't my first language).
I think a sequel to SR, if done right, can make a lot of money. Yes, a reboot could make a lot of money too and maybe even more, but imo it's more risky than a sequel. What happens if the movie takes another 20 years to get made and what if it's another SR (for those that didn't like it), or even worse? Plus, they'd have to spend more money on a reboot than a sequel.
But anyway...I'd be fine with either at this point. I just want a Superman movie. I do want Routh as Superman again, which is the main reason I want a sequel to SR, but I just want a new Superman movie and seeing as how I liked Routh, there's a chance I'll like the new guy (if we get a reboot) too.