I'd like to see Dan, as well (for the same reasons that you mention and because he often serves as a voice of reason in #RPGnet).
I also wouldn't mind seeing former RPGenetter Justin Bacon (the only guy other than Dan whose reviews I read regularly).
And Gareth Skarka (this was a guy who I once traded threats of physical violence with via email, but after working with him at RPGNow and gettign some perspectiv on his personal life back in those days, I found him to be a really great guy who was merely going through a bad spell back in 2001-ish).
Finally, I'd like to see S. John Ross and/or Bruce Baugh join up, as they both have some unique insider perspective into how large/successful companies operate (and because I know that they would drive certain posters here crazy in very amusing ways).
[Edit: Almost everybody else that I have an interest in hearing from in the online RPG community already posts here.]