1: OR Conditions - the possibility to make not just AND conditions (as today) but also OR conditions, to enable creation of more complex rules (currently the only alternative I have found is adding a significant number of exclusive rules in individual rule rows - this most likely have an impact on performance, and is very cumbersome to debug and modify.
2: Possibility to have guardian (when running) automatically add markets as the are made available from Betfair - based on criteria specified in the "Auto Load" section that is added to Guardian in the same instance

2a: In the same "Auto Load" screen, the possibility to specify if a specific rules file should be added when autoloading a market (criteria based).