I could see them getting just about everybody back, except for maybe Shawn.
Unlike other popular shows, it didn't seem like everyone was trying to escape their character from this show.
When you look at shows like Saved by the Bell, all the actors want you to forget that the show ever existed so they can move on with their careers. Thats why they all wanted to try to play roles far off from who they played on SBTB, hoping people would forget.
I never got that vibe with the cast of Boy Meets World. Seems like they was all just happy to have a classic under their belts.
The only one I really saw trying to get acting roles after was Rider Strong (Shawn), with the Cabin Fever movies.
Everybody else just seem like outside of little gigs here and there, they been out of work for 12 years.