I think it'll be 49,000+ for the weekend games, and 42,000+ for the midweek games. Definitely 50,000+ for the teams that'll fill the full away section, such as Leeds, Forest etc.
Some hilarious low IQ b****** has made some changes to the club's Wikipedia page.
https://en.wikipedia.org/wiki/Newcastle_United_F.C.
EDIT: Been changed back now, but this is what this person came up with.
No player would've saved us, or at least gained more points for us, had they been in the team. Especially given the way McClaren had us playing post-West Brom, funnily enough.
Current season ticket holders can use their existing cards but you'll find that new cards will be issued perilously close to the start of the season mine came on the Thursday for Sundays game last year.
Cheers