Got goosebumps watching it and I hope more footage will be released on the internet in the next few months! I was really happy to see older characters there again like Thog, and especially pleased to see Marvin Suggs back! I hope he gets a line or two.
I'm guessing this also more or less confirms Rizzo and Pepe's absence in this film. I'm more surprised about Rizzo not being there really, considering he's been in the mix since the 80's and other characters from that era are at least getting a cameo.