Judging by who Geddy and Alex have played with already, as much as I would love to see MP play with them, I highly doubt he would even be given much consideration. I'd expect someone like Danny Carey or Matt Cameron to get the gig if they were just gonna go with a single drummer. Would also love to see MM play with them, too. He would actually be a better fit than MP given his playing style (learning the parts and holding true to them) and his personality might be a better fit too. But I don't think they would go with him either.