At last, we get closure!
In this interview with Bob McGrath, he states that he, Roscoe and Emilio met with Jeffery Dunn as was originally stated. He says that they will not be returning to the actual show, but they (and presumably Sonia Manzano and Alison Bartlett, possibly Loretta Long) will be part of some sort of upcoming SST "celebration". He also said that they will be involved in the planning process for the show's 50th anniversary:
http://www.mywebtimes.com/news/loca...cle_02c3841d-016c-5168-ba9c-fdfdef8c165c.html
While it's a little sad that they won't be on the show anymore, I completely understand it. But, hey, at least the ole' guys will still be involved with the show in some way. Here's hoping that they all get cameos in the 50th anniversary special!
As for Loretta and Alison, I highly doubt they'd stay on the show either, especially not Loretta. As Bob said in his original statement,
all of the cast members are gone except for Alan Muraoka, Chris Knowings and Suki Lopez.