....... and will at least keep the "franchise" going.
I'm a forever pessimist. To me, being a pessimist is far more practical: if you expect something to wrong, and it does, you're not disappointed. If it goes right, you're happy to beat the band. Being an optimist, if you expect something to go right and it does, big deal. If it flops, you're ready to call Kevorkian. So I'm remaining a pessimist with regards to the new WB version. I was no big fan of the '91 attempt, so when it failed, I just shrugged it off.
I've got this awful scenario in mind of Dan Curtis and the WB deciding that the new one would fare better if the original was not available for comparison.
I don't see why casting would be considered a spoiler. If the show really does come about, presumably they would advertise it, and that would certainly include announcing and probably showing the main characters. I can see that one wouldn't want to know how the storyline will progress, but the cast is something that presumably would be well known before it actually airs.