Really looking forward to this show. As it turns out, Dean Norris may return as Hank Schrader later down the road...
http://www.calltosaul.com/dean-norris-may-return-hank-schrader-better-call-saul/
It could be cool to see the whole Breaking Bad gang show up slowly throughout the course of this series. It would be tough, though, because they'd all have to look 6 years younger. That could be tough for characters like Walter Jr. and Jesse since they were so young during BB's first season.