Your optimism is surprising. We've seen a ton of veterans come through camp and not have what it takes in the tank to make the team, or even continue with their careers. I still don't have Thomas on my 53 until we see him competing at full speed. Thomas tore his Achilles just 8 months ago. That's a career ender for most players. Gordon is so day-to-day.
Looking at your list, I have Meyers at #3 behind Edelman and Harry with Dorsett as the #4. If Gordon is around for the opener, great. But even then, he'll be part time with only two weeks practice under his belt. Then it's one day at a time.