It was my rabid fandom for Gabriel stuff that led me to early Genesis. Befoe I learned that he had ever even been in the group, I was just a casual fan. But eventually I got into the band and amassed most of their catalog. I enjoy basically all eras of the group.
Phil's recent tour dvd featured the tongue-in-cheek title "Finally... The First Farewell Tour." So, yeah, he was poking fun at the concept, while also allowing that it might actually be his last time out. I believe he really designed it that way, as his new family and hearing loss were likely causing him to shy away from any future touring. But since then he and his wife have split up, so who knows where his head is right now.
While I regret Peter not being involved, the bright side (for some of us, anyway) is that they should be able to touch a lot more bases than just those first few albums, while not ignoring the old stuff either. Every live release they've ever done has a few songs from those years, so it seems likely. However, Phil was pretty heavily criticized by his ardent fanbase for favoring the hits on his last tour, so i guess anything's possible.