Apparently it's just gonna be a one hour slot showing older matches, with the first episode showing Okada vs Tanahashi from Wrestle Kingdom 7 in January of last year. They'll either only have like one or two matches per ep or clip them down, I assume, although with the past two G1's being full of amazing matches that're all under 30 minutes (Bar I think one time limit draw last year which went the full 30) they have a lot of matches to pick from that'd fit in.